Finding the Fourth Proportional to 2,250.72, 3,105.61 and 1,255.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.72 : 3,105.61 = 1,255.84 : x
2. Step 2: Convert to fraction form
   2,250.72/3,105.61 = 1,255.84/x
3. Step 3: Cross multiply
   2,250.72x = 3,105.61 × 1,255.84
4. Step 4: Simplify right side
   2,250.72x = 3,900,138.36
5. Step 5: Solve for x
   x = 3,900,138.36/2,250.72
6. Step 6: Final answer
   x = 1,732.84