Finding the Fourth Proportional to 2,515.42, 3,766.74 and 2,103.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.42 : 3,766.74 = 2,103.54 : x
2. Step 2: Convert to fraction form
   2,515.42/3,766.74 = 2,103.54/x
3. Step 3: Cross multiply
   2,515.42x = 3,766.74 × 2,103.54
4. Step 4: Simplify right side
   2,515.42x = 7,923,466.25
5. Step 5: Solve for x
   x = 7,923,466.25/2,515.42
6. Step 6: Final answer
   x = 3,149.96