How can I import German-formatted numbers as numbers

I have a CSV file which I want to import. I use US-English as my system locale and also as LibreOffice locale. However, the CSV file in question is formatted using German date&number formatting (e.g. 28.01.2013 and 1.568,38). I can import the dates fine when I set the column format to DMY, but I cannot seem to make LO recognize the numbers as numbers. I have already set the import language to “German (Germany)”, but it doesn’t seem to have any effect

LibreOffice 12.04 LTS

I’ve since upgraded to 4.0.1 and the solution below works now.