Finding the Fourth Proportional to 2,144.39, 2,959.68 and 1,357.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.39 : 2,959.68 = 1,357.88 : x
2. Step 2: Convert to fraction form
   2,144.39/2,959.68 = 1,357.88/x
3. Step 3: Cross multiply
   2,144.39x = 2,959.68 × 1,357.88
4. Step 4: Simplify right side
   2,144.39x = 4,018,868.69
5. Step 5: Solve for x
   x = 4,018,868.69/2,144.39
6. Step 6: Final answer
   x = 1,874.14