Finding the Fourth Proportional to 1,265,778.24, 1,898,371.98 and 366,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,778.24 : 1,898,371.98 = 366,978.72 : x
2. Step 2: Convert to fraction form
   1,265,778.24/1,898,371.98 = 366,978.72/x
3. Step 3: Cross multiply
   1,265,778.24x = 1,898,371.98 × 366,978.72
4. Step 4: Simplify right side
   1,265,778.24x = 696,662,119,304.27
5. Step 5: Solve for x
   x = 696,662,119,304.27/1,265,778.24
6. Step 6: Final answer
   x = 550,382.44