Kim and Nick are planning to save for their daughter Chloe’s college education. Chloe was born today and will attend college for 4 years, starting at age 18. Tuition currently costs $15,000 per year and tuition inflation is expected to be 6%. They believe they can earn 9% on their investments. How much must Kim and Nick save at the end of each year, if they want to make their last savings payment at the beginning of Chloe’s first year of college?