Finding the Fourth Proportional to 840,864.72, 1,160,396.56 and 458,900

Step by Step Solution

1. Step 1: Write the proportion equation
   840,864.72 : 1,160,396.56 = 458,900 : x
2. Step 2: Convert to fraction form
   840,864.72/1,160,396.56 = 458,900/x
3. Step 3: Cross multiply
   840,864.72x = 1,160,396.56 × 458,900
4. Step 4: Simplify right side
   840,864.72x = 532,505,981,384
5. Step 5: Solve for x
   x = 532,505,981,384/840,864.72
6. Step 6: Final answer
   x = 633,283.77