Finding the Fourth Proportional to 2,140,080.24, 3,209,187.12 and 809,451.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,080.24 : 3,209,187.12 = 809,451.12 : x
2. Step 2: Convert to fraction form
   2,140,080.24/3,209,187.12 = 809,451.12/x
3. Step 3: Cross multiply
   2,140,080.24x = 3,209,187.12 × 809,451.12
4. Step 4: Simplify right side
   2,140,080.24x = 2,597,680,108,573.57
5. Step 5: Solve for x
   x = 2,597,680,108,573.57/2,140,080.24
6. Step 6: Final answer
   x = 1,213,823.70