Finding the Fourth Proportional to 1,022,554.57, 1,411,113.82 and 557,398.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022,554.57 : 1,411,113.82 = 557,398.25 : x
2. Step 2: Convert to fraction form
   1,022,554.57/1,411,113.82 = 557,398.25/x
3. Step 3: Cross multiply
   1,022,554.57x = 1,411,113.82 × 557,398.25
4. Step 4: Simplify right side
   1,022,554.57x = 786,552,373,818.82
5. Step 5: Solve for x
   x = 786,552,373,818.82/1,022,554.57
6. Step 6: Final answer
   x = 769,203.32