Finding the Fourth Proportional to 2,258.04, 3,387.72 and 959.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.04 : 3,387.72 = 959.61 : x
2. Step 2: Convert to fraction form
   2,258.04/3,387.72 = 959.61/x
3. Step 3: Cross multiply
   2,258.04x = 3,387.72 × 959.61
4. Step 4: Simplify right side
   2,258.04x = 3,250,873.05
5. Step 5: Solve for x
   x = 3,250,873.05/2,258.04
6. Step 6: Final answer
   x = 1,439.69