Finding the Fourth Proportional to 1,023,665.49, 1,413,111.33 and 661,266.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,023,665.49 : 1,413,111.33 = 661,266.02 : x
2. Step 2: Convert to fraction form
   1,023,665.49/1,413,111.33 = 661,266.02/x
3. Step 3: Cross multiply
   1,023,665.49x = 1,413,111.33 × 661,266.02
4. Step 4: Simplify right side
   1,023,665.49x = 934,442,497,940.45
5. Step 5: Solve for x
   x = 934,442,497,940.45/1,023,665.49
6. Step 6: Final answer
   x = 912,839.70