The party leader of the bourgeois moderates, Ulf Kristersson, has been elected the new prime minister of Sweden.
He received the support he needed in a parliamentary vote in Stockholm on Monday.
Kristersson announced on Friday that he had reached an agreement with right-wing parties to form a government that would be supported by the right-wing populist Sweden Democrats in order to secure a majority.
Governments without their own majority are not uncommon in Scandinavia - what is new, however, is that in Sweden the right-wing populists are actively involved as a supporting party in such a constellation.
Kristersson, who succeeds the Social Democrat Magdalena Andersson in office, wanted to make a government statement on Tuesday and present his cabinet.
After an appointment with King Carl XVI.
Gustaf, the new government could then officially start work.
Kristersson's right-wing conservative camp won a narrow majority of 176 out of 349 seats in Sweden's September 11 parliamentary elections.
After eight years under Social Democratic leadership – first under Stefan Löfven for a long time, then under Andersson – the signs were pointing to a change of government.
The Sweden Democrats had achieved a record result in the election and replaced the moderates as the second strongest political force for the first time.
Without them, Kristersson's planned coalition will not achieve a majority in the Reichstag, giving the right-wing populists greater power.
Their cooperation with the future government is based on the so-called Tidö agreement, which is named after a castle in which the parties involved had agreed on several intersections in the past few weeks.
They have anchored seven cooperation projects in it, including those on crime, migration and integration, which are important issues for the Sweden Democrats.
Sweden Democrat leader Jimmie Åkesson has already announced a "paradigm shift in immigration and integration policy".