I got $443,026.34 in Excel, but I can't figure out how to do it by hand.

6) You make a series of quarterly deposits every quarter starting at the end Quarter 1 and ending at the end of Quarter 36. The first deposit is S1,100, and each deposit increases by S500 each Quarter. The nominal annual interest rate is 7%, and is compounded continuously. What is the Future Value of these series of deposits at the end of Quarter 36