Finding the Fourth Proportional to 2,116,406.72, 2,920,662.72 and 1,149,555.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,406.72 : 2,920,662.72 = 1,149,555.92 : x
2. Step 2: Convert to fraction form
   2,116,406.72/2,920,662.72 = 1,149,555.92/x
3. Step 3: Cross multiply
   2,116,406.72x = 2,920,662.72 × 1,149,555.92
4. Step 4: Simplify right side
   2,116,406.72x = 3,357,465,120,099.30
5. Step 5: Solve for x
   x = 3,357,465,120,099.30/2,116,406.72
6. Step 6: Final answer
   x = 1,586,398.82