Let the fourth proportional is m, then 6:8 = 15:m
Put m, both sides,
Divident=(Divisor × Quotient) + Remainder ----------1st Q=702 R=24 Divisor = 702 + 24 +7 = 733 Putting Q,R & Divisor values in Eq^{n} Divident = (733 × 702) + 24 = 514566 + 24 = 514590