Ramon needs to have 7230 in 12 years. how much money should he deposit in his account if he earns 3.25% interest compound 4 times per year

Principal = Total / (1 + rate/n)^n*years
where "n" is the number of compounding periods per year
Principal = 7,230 / (1 + .0325/4)^4*12
Principal = 7,230 / (1.008125)^48
Principal = 7,230 / 1.4746551341
Principal = 4,902.84

Source:
http://www.1728.org/compint3.htm

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