Finding the Fourth Proportional to 2,555.92, 3,831.28 and 1,443.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.92 : 3,831.28 = 1,443.72 : x
2. Step 2: Convert to fraction form
   2,555.92/3,831.28 = 1,443.72/x
3. Step 3: Cross multiply
   2,555.92x = 3,831.28 × 1,443.72
4. Step 4: Simplify right side
   2,555.92x = 5,531,295.56
5. Step 5: Solve for x
   x = 5,531,295.56/2,555.92
6. Step 6: Final answer
   x = 2,164.11