Sharon wants to retire in 25 years time, and so decides to start
a new retirement savings account. She wants to accumulate 500000
dollars by the time she retires. Initially, Sharon deposits 2000
dollars into the account. She will make further deposits at the end
of each month. The account will earn interest at annual rate 10
percent, compounded monthly. How much will she have to deposit into
the account each month in order to reach this target after 25
years? (Give your answer, in dollars, correct to the nearest
cent.)