Finding the Fourth Proportional to 2,131,978.67, 2,942,138.25 and 1,165,109.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,978.67 : 2,942,138.25 = 1,165,109.41 : x
2. Step 2: Convert to fraction form
   2,131,978.67/2,942,138.25 = 1,165,109.41/x
3. Step 3: Cross multiply
   2,131,978.67x = 2,942,138.25 × 1,165,109.41
4. Step 4: Simplify right side
   2,131,978.67x = 3,427,912,940,059.69
5. Step 5: Solve for x
   x = 3,427,912,940,059.69/2,131,978.67
6. Step 6: Final answer
   x = 1,607,855.18