Finding the Fourth Proportional to 2,138,423.28, 2,951,029.53 and 1,171,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,423.28 : 2,951,029.53 = 1,171,572.72 : x
2. Step 2: Convert to fraction form
   2,138,423.28/2,951,029.53 = 1,171,572.72/x
3. Step 3: Cross multiply
   2,138,423.28x = 2,951,029.53 × 1,171,572.72
4. Step 4: Simplify right side
   2,138,423.28x = 3,457,345,693,262.42
5. Step 5: Solve for x
   x = 3,457,345,693,262.42/2,138,423.28
6. Step 6: Final answer
   x = 1,616,773.31