Finding the Fourth Proportional to 3,865.03, 5,789.33 and 2,616.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865.03 : 5,789.33 = 2,616.38 : x
2. Step 2: Convert to fraction form
   3,865.03/5,789.33 = 2,616.38/x
3. Step 3: Cross multiply
   3,865.03x = 5,789.33 × 2,616.38
4. Step 4: Simplify right side
   3,865.03x = 15,147,074.14
5. Step 5: Solve for x
   x = 15,147,074.14/3,865.03
6. Step 6: Final answer
   x = 3,919.01