Finding the Fourth Proportional to 3,085.59, 4,258.17 and 2,202.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085.59 : 4,258.17 = 2,202.90 : x
2. Step 2: Convert to fraction form
   3,085.59/4,258.17 = 2,202.90/x
3. Step 3: Cross multiply
   3,085.59x = 4,258.17 × 2,202.90
4. Step 4: Simplify right side
   3,085.59x = 9,380,306.72
5. Step 5: Solve for x
   x = 9,380,306.72/3,085.59
6. Step 6: Final answer
   x = 3,040.03