Finding the Fourth Proportional to 2,605.38, 3,902.18 and 2,016.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.38 : 3,902.18 = 2,016.24 : x
2. Step 2: Convert to fraction form
   2,605.38/3,902.18 = 2,016.24/x
3. Step 3: Cross multiply
   2,605.38x = 3,902.18 × 2,016.24
4. Step 4: Simplify right side
   2,605.38x = 7,867,731.40
5. Step 5: Solve for x
   x = 7,867,731.40/2,605.38
6. Step 6: Final answer
   x = 3,019.80