Finding the Fourth Proportional to 2,591,980.80, 3,884,860.80 and 1,329,158.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591,980.80 : 3,884,860.80 = 1,329,158.40 : x
2. Step 2: Convert to fraction form
   2,591,980.80/3,884,860.80 = 1,329,158.40/x
3. Step 3: Cross multiply
   2,591,980.80x = 3,884,860.80 × 1,329,158.40
4. Step 4: Simplify right side
   2,591,980.80x = 5,163,595,365,150.72
5. Step 5: Solve for x
   x = 5,163,595,365,150.72/2,591,980.80
6. Step 6: Final answer
   x = 1,992,142.60