Finding the Fourth Proportional to 821,103.50, 1,133,057.52 and 458,505.72

Step by Step Solution

1. Step 1: Write the proportion equation
   821,103.50 : 1,133,057.52 = 458,505.72 : x
2. Step 2: Convert to fraction form
   821,103.50/1,133,057.52 = 458,505.72/x
3. Step 3: Cross multiply
   821,103.50x = 1,133,057.52 × 458,505.72
4. Step 4: Simplify right side
   821,103.50x = 519,513,354,009.01
5. Step 5: Solve for x
   x = 519,513,354,009.01/821,103.50
6. Step 6: Final answer
   x = 632,701.42