corp. finance
posted by James on .
What is the future value at the end of year 20 of depositing $5,000 today, $3,500 at the end of years 1,
2 and 3, $5,000 at the end of years 4, 5, 6 and 7 and $4,250 at the end of years 8, 9, 10, 11 and 12 into
an account that pays 13% p.a.?

It's tedious, but there isn't a useful shortcut.
In year one, you add 13% of 5000 to the 5000, making 5650. Then you add 3500, making 9150. Then you add 13% to that, and then add another 3500, and go for another year @ 13%. And so on. 
can I plug this in on a financial calculator? If so how would I?