Finding the Fourth Proportional to 2,142,757.80, 2,957,041.70 and 1,175,978.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,757.80 : 2,957,041.70 = 1,175,978.05 : x
2. Step 2: Convert to fraction form
   2,142,757.80/2,957,041.70 = 1,175,978.05/x
3. Step 3: Cross multiply
   2,142,757.80x = 2,957,041.70 × 1,175,978.05
4. Step 4: Simplify right side
   2,142,757.80x = 3,477,416,132,134.69
5. Step 5: Solve for x
   x = 3,477,416,132,134.69/2,142,757.80
6. Step 6: Final answer
   x = 1,622,869.43