Finding the Fourth Proportional to 2,255.32, 3,113.37 and 1,657.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.32 : 3,113.37 = 1,657.81 : x
2. Step 2: Convert to fraction form
   2,255.32/3,113.37 = 1,657.81/x
3. Step 3: Cross multiply
   2,255.32x = 3,113.37 × 1,657.81
4. Step 4: Simplify right side
   2,255.32x = 5,161,375.92
5. Step 5: Solve for x
   x = 5,161,375.92/2,255.32
6. Step 6: Final answer
   x = 2,288.53