Finding the Fourth Proportional to 1,443.52, 2,160.20 and 1,250.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.52 : 2,160.20 = 1,250.80 : x
2. Step 2: Convert to fraction form
   1,443.52/2,160.20 = 1,250.80/x
3. Step 3: Cross multiply
   1,443.52x = 2,160.20 × 1,250.80
4. Step 4: Simplify right side
   1,443.52x = 2,701,978.16
5. Step 5: Solve for x
   x = 2,701,978.16/1,443.52
6. Step 6: Final answer
   x = 1,871.80