Finding the Fourth Proportional to 2,144.90, 2,960.28 and 1,359.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.90 : 2,960.28 = 1,359.02 : x
2. Step 2: Convert to fraction form
   2,144.90/2,960.28 = 1,359.02/x
3. Step 3: Cross multiply
   2,144.90x = 2,960.28 × 1,359.02
4. Step 4: Simplify right side
   2,144.90x = 4,023,079.73
5. Step 5: Solve for x
   x = 4,023,079.73/2,144.90
6. Step 6: Final answer
   x = 1,875.65