Finding the Fourth Proportional to 913,868.10, 1,262,872.89 and 687,119.94

Step by Step Solution

1. Step 1: Write the proportion equation
   913,868.10 : 1,262,872.89 = 687,119.94 : x
2. Step 2: Convert to fraction form
   913,868.10/1,262,872.89 = 687,119.94/x
3. Step 3: Cross multiply
   913,868.10x = 1,262,872.89 × 687,119.94
4. Step 4: Simplify right side
   913,868.10x = 867,745,144,404.43
5. Step 5: Solve for x
   x = 867,745,144,404.43/913,868.10
6. Step 6: Final answer
   x = 949,529.96