You have just had your 30^th birthday. You have two children. One will go to college 10 years from now and require four beginning-of-year payments for college expenses of $10,000, $11,000, $12,000, and $13,000. The second child will go to college in 15 years from now and require four beginning-of-year payments for college expenses of $15,000, $16,000, $17,000, and $18,000. In addition, you plan to retire 30 years from now. You want to have $12,000 available for each month of your expected 25 years of retirement. These funds will need to be available at the beginning of each month. The first withdrawal will occur on your 60^th birthday. What equal, end-of month amount must you save over each of the next 30 years to meet these goals assuming all savings earn an annual, after-tax rate of return of 5 percent over the entire horizon?