Finding the Fourth Proportional to 3,144.78, 4,339.92 and 1,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.78 : 4,339.92 = 1,747.50 : x
2. Step 2: Convert to fraction form
   3,144.78/4,339.92 = 1,747.50/x
3. Step 3: Cross multiply
   3,144.78x = 4,339.92 × 1,747.50
4. Step 4: Simplify right side
   3,144.78x = 7,584,010.20
5. Step 5: Solve for x
   x = 7,584,010.20/3,144.78
6. Step 6: Final answer
   x = 2,411.62