Mrs. Gold is planning for her retirement years. She will retire in 20 years, at which time she plans to begin withdrawing $90,000 annually at the end of each year. She projects that she'll live for 13 years following her retirement (if she keeps up her party lifestyle). Her financial advisor thinks she can earn 6% annually for the next 20 years and 8% for the years after that. How much does she need to invest each year to prepare for her financial needs after her retirement (she makes her contributions to the plan on the first day of each year)