Finding the Fourth Proportional to 2,144.55, 2,959.55 and 1,260.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.55 : 2,959.55 = 1,260.34 : x
2. Step 2: Convert to fraction form
   2,144.55/2,959.55 = 1,260.34/x
3. Step 3: Cross multiply
   2,144.55x = 2,959.55 × 1,260.34
4. Step 4: Simplify right side
   2,144.55x = 3,730,018.15
5. Step 5: Solve for x
   x = 3,730,018.15/2,144.55
6. Step 6: Final answer
   x = 1,739.31