Finding the Fourth Proportional to 2,104,208.64, 3,156,780.72 and 981,665.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104,208.64 : 3,156,780.72 = 981,665.28 : x
2. Step 2: Convert to fraction form
   2,104,208.64/3,156,780.72 = 981,665.28/x
3. Step 3: Cross multiply
   2,104,208.64x = 3,156,780.72 × 981,665.28
4. Step 4: Simplify right side
   2,104,208.64x = 3,098,902,029,397.40
5. Step 5: Solve for x
   x = 3,098,902,029,397.40/2,104,208.64
6. Step 6: Final answer
   x = 1,472,716.14