Finding the Fourth Proportional to 2,189, 3,020.82 and 1,258.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189 : 3,020.82 = 1,258.04 : x
2. Step 2: Convert to fraction form
   2,189/3,020.82 = 1,258.04/x
3. Step 3: Cross multiply
   2,189x = 3,020.82 × 1,258.04
4. Step 4: Simplify right side
   2,189x = 3,800,312.39
5. Step 5: Solve for x
   x = 3,800,312.39/2,189
6. Step 6: Final answer
   x = 1,736.10