Finding the Fourth Proportional to 2,255.92, 3,113.24 and 1,261.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.92 : 3,113.24 = 1,261.37 : x
2. Step 2: Convert to fraction form
   2,255.92/3,113.24 = 1,261.37/x
3. Step 3: Cross multiply
   2,255.92x = 3,113.24 × 1,261.37
4. Step 4: Simplify right side
   2,255.92x = 3,926,949.02
5. Step 5: Solve for x
   x = 3,926,949.02/2,255.92
6. Step 6: Final answer
   x = 1,740.73