Barack and Michelle Obama want to begin saving for their two daughter's college fund. They estimate they will need $1,000,000 to pay for four years of college costs. They want to know how much they need to set aside at the end of each month in a college savings fund that will yield 8% interest annually. They have 18 years to complete the goal for their college fund. How much do the Obamas need to save at the end of each month?