Two persons A and ‘B' started the business with an initial investment of Rs. 2,000 and Rs. 3,000 respectively. ‘A’ invested Rs. 1,000 additionally after every 4 months and B invested Rs. 1,000 additionally after every 6 months. At the end of the year  A and B separated their profit after the deduction of Rs. x from charity. If the total amount separated is Rs. 26000 and Total share given by A including charity amount is Rs. 15000. Find the value of x.