Finding the Fourth Proportional to 2,306.09, 3,182.41 and 1,258.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.09 : 3,182.41 = 1,258.15 : x
2. Step 2: Convert to fraction form
   2,306.09/3,182.41 = 1,258.15/x
3. Step 3: Cross multiply
   2,306.09x = 3,182.41 × 1,258.15
4. Step 4: Simplify right side
   2,306.09x = 4,003,949.14
5. Step 5: Solve for x
   x = 4,003,949.14/2,306.09
6. Step 6: Final answer
   x = 1,736.25