Finding the Fourth Proportional to 942,781.98, 1,301,020.56 and 513,069.42

Step by Step Solution

1. Step 1: Write the proportion equation
   942,781.98 : 1,301,020.56 = 513,069.42 : x
2. Step 2: Convert to fraction form
   942,781.98/1,301,020.56 = 513,069.42/x
3. Step 3: Cross multiply
   942,781.98x = 1,301,020.56 × 513,069.42
4. Step 4: Simplify right side
   942,781.98x = 667,513,864,127.28
5. Step 5: Solve for x
   x = 667,513,864,127.28/942,781.98
6. Step 6: Final answer
   x = 708,025.69