Finding the Fourth Proportional to 762,278.53, 1,053,179.98 and 648,756.83

Step by Step Solution

1. Step 1: Write the proportion equation
   762,278.53 : 1,053,179.98 = 648,756.83 : x
2. Step 2: Convert to fraction form
   762,278.53/1,053,179.98 = 648,756.83/x
3. Step 3: Cross multiply
   762,278.53x = 1,053,179.98 × 648,756.83
4. Step 4: Simplify right side
   762,278.53x = 683,257,700,789.31
5. Step 5: Solve for x
   x = 683,257,700,789.31/762,278.53
6. Step 6: Final answer
   x = 896,336.02