Finding the Fourth Proportional to 2,311,400.29, 3,189,826.41 and 1,278,891.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311,400.29 : 3,189,826.41 = 1,278,891.27 : x
2. Step 2: Convert to fraction form
   2,311,400.29/3,189,826.41 = 1,278,891.27/x
3. Step 3: Cross multiply
   2,311,400.29x = 3,189,826.41 × 1,278,891.27
4. Step 4: Simplify right side
   2,311,400.29x = 4,079,441,150,144.55
5. Step 5: Solve for x
   x = 4,079,441,150,144.55/2,311,400.29
6. Step 6: Final answer
   x = 1,764,921.97