Finding the Fourth Proportional to 2,112,380.72, 2,915,086.18 and 1,145,510.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,380.72 : 2,915,086.18 = 1,145,510.76 : x
2. Step 2: Convert to fraction form
   2,112,380.72/2,915,086.18 = 1,145,510.76/x
3. Step 3: Cross multiply
   2,112,380.72x = 2,915,086.18 × 1,145,510.76
4. Step 4: Simplify right side
   2,112,380.72x = 3,339,262,585,517.30
5. Step 5: Solve for x
   x = 3,339,262,585,517.30/2,112,380.72
6. Step 6: Final answer
   x = 1,580,805.28