You have a dataset that provides three years of quarterly sales volume for a seasonal product. We need to forecast sales volume for the fourth year, which has estimate quarterly trend line forecast of $2073\mathrm{.}44,2016\mathrm{.}74,1960\mathrm{.}05,$ and $1903\mathrm{.}35$ respectively. With quarterly relative indices of $0\mathrm{.}96,0\mathrm{.}82,1\mathrm{.}01,$ and $1\mathrm{.}2,$ respectively, what is the quarterly forecast for the fourth year?