Finding the Fourth Proportional to 1,085,472.16, 1,496,221.37 and 855,654.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,472.16 : 1,496,221.37 = 855,654.91 : x
2. Step 2: Convert to fraction form
   1,085,472.16/1,496,221.37 = 855,654.91/x
3. Step 3: Cross multiply
   1,085,472.16x = 1,496,221.37 × 855,654.91
4. Step 4: Simplify right side
   1,085,472.16x = 1,280,249,156,877.30
5. Step 5: Solve for x
   x = 1,280,249,156,877.30/1,085,472.16
6. Step 6: Final answer
   x = 1,179,439.89