Finding the Fourth Proportional to 2,253.23, 3,109.46 and 1,258.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.23 : 3,109.46 = 1,258.54 : x
2. Step 2: Convert to fraction form
   2,253.23/3,109.46 = 1,258.54/x
3. Step 3: Cross multiply
   2,253.23x = 3,109.46 × 1,258.54
4. Step 4: Simplify right side
   2,253.23x = 3,913,382.10
5. Step 5: Solve for x
   x = 3,913,382.10/2,253.23
6. Step 6: Final answer
   x = 1,736.79