Finding the Fourth Proportional to 2,255.24, 3,112.22 and 1,260.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.24 : 3,112.22 = 1,260.51 : x
2. Step 2: Convert to fraction form
   2,255.24/3,112.22 = 1,260.51/x
3. Step 3: Cross multiply
   2,255.24x = 3,112.22 × 1,260.51
4. Step 4: Simplify right side
   2,255.24x = 3,922,984.43
5. Step 5: Solve for x
   x = 3,922,984.43/2,255.24
6. Step 6: Final answer
   x = 1,739.50