Finding the Fourth Proportional to 2,112,390.42, 2,915,099.46 and 1,145,520.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,390.42 : 2,915,099.46 = 1,145,520.42 : x
2. Step 2: Convert to fraction form
   2,112,390.42/2,915,099.46 = 1,145,520.42/x
3. Step 3: Cross multiply
   2,112,390.42x = 2,915,099.46 × 1,145,520.42
4. Step 4: Simplify right side
   2,112,390.42x = 3,339,305,957,760.97
5. Step 5: Solve for x
   x = 3,339,305,957,760.97/2,112,390.42
6. Step 6: Final answer
   x = 1,580,818.55