Finding the Fourth Proportional to 2,278,273.69, 3,143,983.17 and 1,245,784.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278,273.69 : 3,143,983.17 = 1,245,784.78 : x
2. Step 2: Convert to fraction form
   2,278,273.69/3,143,983.17 = 1,245,784.78/x
3. Step 3: Cross multiply
   2,278,273.69x = 3,143,983.17 × 1,245,784.78
4. Step 4: Simplify right side
   2,278,273.69x = 3,916,726,381,762.15
5. Step 5: Solve for x
   x = 3,916,726,381,762.15/2,278,273.69
6. Step 6: Final answer
   x = 1,719,164.12