A company that manufactures purgable hydrogen sulfide monitors is planning to make deposits such that each one is 5% smaller than the preceding one. What must be the deposit at the end of year 1 if...

A company that manufactures purgable hydrogen sulfide monitors is planning to make deposits such that each one is 5% smaller than the preceding one. What must be the deposit at the end of year 1 if the deposits will extend through year 10 and the fourth deposit is $1250? Use an interest rate of 10% per year.