Finding the Fourth Proportional to 834,089.07, 1,147,940.10 and 687,724.10

Step by Step Solution

1. Step 1: Write the proportion equation
   834,089.07 : 1,147,940.10 = 687,724.10 : x
2. Step 2: Convert to fraction form
   834,089.07/1,147,940.10 = 687,724.10/x
3. Step 3: Cross multiply
   834,089.07x = 1,147,940.10 × 687,724.10
4. Step 4: Simplify right side
   834,089.07x = 789,466,066,386.71
5. Step 5: Solve for x
   x = 789,466,066,386.71/834,089.07
6. Step 6: Final answer
   x = 946,500.91