Finding the Fourth Proportional to 897,287.82, 1,238,448.82 and 515,525.10

Step by Step Solution

1. Step 1: Write the proportion equation
   897,287.82 : 1,238,448.82 = 515,525.10 : x
2. Step 2: Convert to fraction form
   897,287.82/1,238,448.82 = 515,525.10/x
3. Step 3: Cross multiply
   897,287.82x = 1,238,448.82 × 515,525.10
4. Step 4: Simplify right side
   897,287.82x = 638,451,451,775.38
5. Step 5: Solve for x
   x = 638,451,451,775.38/897,287.82
6. Step 6: Final answer
   x = 711,534.74