Ema had $$$360$$ less than Keng Wee. Ema spent~$\tfrac{1}{4}$~of her money and Keng Wee spent~$\tfrac{4}{7}$~of his money. In the end, Keng Wee and Ema had the same amount of money left. Find the amount of money Keng Wee had at first. 
Overseas Competition->Knowledge Point->Calculation Modules->Fractions