Finding the Fourth Proportional to 2,116,408.72, 2,920,665.48 and 1,149,557.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,408.72 : 2,920,665.48 = 1,149,557.92 : x
2. Step 2: Convert to fraction form
   2,116,408.72/2,920,665.48 = 1,149,557.92/x
3. Step 3: Cross multiply
   2,116,408.72x = 2,920,665.48 × 1,149,557.92
4. Step 4: Simplify right side
   2,116,408.72x = 3,357,474,134,204.60
5. Step 5: Solve for x
   x = 3,357,474,134,204.60/2,116,408.72
6. Step 6: Final answer
   x = 1,586,401.58