Finding the Fourth Proportional to 2,654,813.04, 3,981,880.56 and 857,509.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654,813.04 : 3,981,880.56 = 857,509.76 : x
2. Step 2: Convert to fraction form
   2,654,813.04/3,981,880.56 = 857,509.76/x
3. Step 3: Cross multiply
   2,654,813.04x = 3,981,880.56 × 857,509.76
4. Step 4: Simplify right side
   2,654,813.04x = 3,414,501,443,354.27
5. Step 5: Solve for x
   x = 3,414,501,443,354.27/2,654,813.04
6. Step 6: Final answer
   x = 1,286,155.14