Finding the Fourth Proportional to 2,288,517.72, 3,433,268.76 and 772,238.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288,517.72 : 3,433,268.76 = 772,238.28 : x
2. Step 2: Convert to fraction form
   2,288,517.72/3,433,268.76 = 772,238.28/x
3. Step 3: Cross multiply
   2,288,517.72x = 3,433,268.76 × 772,238.28
4. Step 4: Simplify right side
   2,288,517.72x = 2,651,301,562,000.13
5. Step 5: Solve for x
   x = 2,651,301,562,000.13/2,288,517.72
6. Step 6: Final answer
   x = 1,158,523.50