Riley invested $5,100 in an account paying an interest rate of 7\tfrac{3}{4}7 4 3 ​ % compounded quarterly. Ryan invested $5,100 in an account paying an interest rate of 7\tfrac{1}{4}7 4 1 ​ % compounded daily. After 7 years, how much more money would Riley have in her account than Ryan, to the nearest dollar?