Howard would like to plan for his two daughters college educations. Erin is 4 years old, and Shannon is 1 year old. Howard is planning for both girls to attend college for 4 years, beginning at age 18. Tuition is currently $12,000 per year and tuition inflation is 5.5%. Howard can earn an after-tax rate of return of 10.5%. How much must Howard save at the end of each year, if he wants to make the last payment at the beginning of his second daughter's last year of college? (13 Points)