Finding the Fourth Proportional to 2,144.42, 2,959.42 and 1,260.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.42 : 2,959.42 = 1,260.48 : x
2. Step 2: Convert to fraction form
   2,144.42/2,959.42 = 1,260.48/x
3. Step 3: Cross multiply
   2,144.42x = 2,959.42 × 1,260.48
4. Step 4: Simplify right side
   2,144.42x = 3,730,289.72
5. Step 5: Solve for x
   x = 3,730,289.72/2,144.42
6. Step 6: Final answer
   x = 1,739.53