Finding the Fourth Proportional to 2,253.41, 3,109.76 and 1,258.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.41 : 3,109.76 = 1,258.73 : x
2. Step 2: Convert to fraction form
   2,253.41/3,109.76 = 1,258.73/x
3. Step 3: Cross multiply
   2,253.41x = 3,109.76 × 1,258.73
4. Step 4: Simplify right side
   2,253.41x = 3,914,348.20
5. Step 5: Solve for x
   x = 3,914,348.20/2,253.41
6. Step 6: Final answer
   x = 1,737.08