A sum of Rs. x is divided among A, B and C such that the ratio of the shares of A and B is 3 : 4 and the ratio of the shares of A and C is 5 : 8. If the difference between the shares of B and that of C is Rs. 312, then the value of x will be:
1
Rs. 4,602
2
Rs. 4,524
3
Rs. 4,680
4
Rs. 4,446