Finding the Fourth Proportional to 1,012,878.28, 1,397,748.18 and 560,159.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,878.28 : 1,397,748.18 = 560,159.56 : x
2. Step 2: Convert to fraction form
   1,012,878.28/1,397,748.18 = 560,159.56/x
3. Step 3: Cross multiply
   1,012,878.28x = 1,397,748.18 × 560,159.56
4. Step 4: Simplify right side
   1,012,878.28x = 782,962,005,499.60
5. Step 5: Solve for x
   x = 782,962,005,499.60/1,012,878.28
6. Step 6: Final answer
   x = 773,007.00