Finding the Fourth Proportional to 704,867.72, 972,617.72 and 418,501.96

Step by Step Solution

1. Step 1: Write the proportion equation
   704,867.72 : 972,617.72 = 418,501.96 : x
2. Step 2: Convert to fraction form
   704,867.72/972,617.72 = 418,501.96/x
3. Step 3: Cross multiply
   704,867.72x = 972,617.72 × 418,501.96
4. Step 4: Simplify right side
   704,867.72x = 407,042,422,150.73
5. Step 5: Solve for x
   x = 407,042,422,150.73/704,867.72
6. Step 6: Final answer
   x = 577,473.49