Finding the Fourth Proportional to 2,258.58, 3,386.42 and 1,087.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.58 : 3,386.42 = 1,087.05 : x
2. Step 2: Convert to fraction form
   2,258.58/3,386.42 = 1,087.05/x
3. Step 3: Cross multiply
   2,258.58x = 3,386.42 × 1,087.05
4. Step 4: Simplify right side
   2,258.58x = 3,681,225.32
5. Step 5: Solve for x
   x = 3,681,225.32/2,258.58
6. Step 6: Final answer
   x = 1,629.88