Finding the Fourth Proportional to 2,138,379.37, 3,208,047.83 and 718,396.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,379.37 : 3,208,047.83 = 718,396.72 : x
2. Step 2: Convert to fraction form
   2,138,379.37/3,208,047.83 = 718,396.72/x
3. Step 3: Cross multiply
   2,138,379.37x = 3,208,047.83 × 718,396.72
4. Step 4: Simplify right side
   2,138,379.37x = 2,304,651,019,042.90
5. Step 5: Solve for x
   x = 2,304,651,019,042.90/2,138,379.37
6. Step 6: Final answer
   x = 1,077,755.92