Finding the Fourth Proportional to 2,258.30, 3,388.86 and 1,103.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.30 : 3,388.86 = 1,103.42 : x
2. Step 2: Convert to fraction form
   2,258.30/3,388.86 = 1,103.42/x
3. Step 3: Cross multiply
   2,258.30x = 3,388.86 × 1,103.42
4. Step 4: Simplify right side
   2,258.30x = 3,739,335.90
5. Step 5: Solve for x
   x = 3,739,335.90/2,258.30
6. Step 6: Final answer
   x = 1,655.82