Finding the Fourth Proportional to 2,725,187.64, 4,088,414.70 and 928,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725,187.64 : 4,088,414.70 = 928,086.72 : x
2. Step 2: Convert to fraction form
   2,725,187.64/4,088,414.70 = 928,086.72/x
3. Step 3: Cross multiply
   2,725,187.64x = 4,088,414.70 × 928,086.72
4. Step 4: Simplify right side
   2,725,187.64x = 3,794,403,388,922.78
5. Step 5: Solve for x
   x = 3,794,403,388,922.78/2,725,187.64
6. Step 6: Final answer
   x = 1,392,345.74