Finding the Fourth Proportional to 2,258.39, 3,387.59 and 1,162.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.39 : 3,387.59 = 1,162.15 : x
2. Step 2: Convert to fraction form
   2,258.39/3,387.59 = 1,162.15/x
3. Step 3: Cross multiply
   2,258.39x = 3,387.59 × 1,162.15
4. Step 4: Simplify right side
   2,258.39x = 3,936,887.72
5. Step 5: Solve for x
   x = 3,936,887.72/2,258.39
6. Step 6: Final answer
   x = 1,743.23