Finding the Fourth Proportional to 2,401.11, 3,311.33 and 1,515.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.11 : 3,311.33 = 1,515.38 : x
2. Step 2: Convert to fraction form
   2,401.11/3,311.33 = 1,515.38/x
3. Step 3: Cross multiply
   2,401.11x = 3,311.33 × 1,515.38
4. Step 4: Simplify right side
   2,401.11x = 5,017,899.12
5. Step 5: Solve for x
   x = 5,017,899.12/2,401.11
6. Step 6: Final answer
   x = 2,089.82