Investment mathematics ( annuities ) question :

Question 3 Your son just turned 10 years old. He will need $40,000 at the beginning of each year for 4 years starting on his 19th birthday to attend university. You also wish to gift him $50,000 upon graduation. How much must you put aside every month, at the beginning of the month, starting today, to fund his education and gift, if you foresee earning a return of 5%, compounded monthly? Round to the nearest dollar