Finding the Fourth Proportional to 2,258.22, 3,386.52 and 959.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.22 : 3,386.52 = 959.25 : x
2. Step 2: Convert to fraction form
   2,258.22/3,386.52 = 959.25/x
3. Step 3: Cross multiply
   2,258.22x = 3,386.52 × 959.25
4. Step 4: Simplify right side
   2,258.22x = 3,248,519.31
5. Step 5: Solve for x
   x = 3,248,519.31/2,258.22
6. Step 6: Final answer
   x = 1,438.53