Sita and Gita enter into a partnership. Sita contributes Rs 5,000 while Gita contributes Rs 4,000. After 1 month, Gita withdraws 14th of her contribution and after 3 months Sita invests Rs 22,000 more. When Gita withdraws her investment, Rita joins them by investing Rs 7,000. If at the end of 1 year there is a profit of Rs 1,218, what will Rita's share of the profit?