Finding the Fourth Proportional to 3,698.82, 5,105.82 and 2,520.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.82 : 5,105.82 = 2,520.54 : x
2. Step 2: Convert to fraction form
   3,698.82/5,105.82 = 2,520.54/x
3. Step 3: Cross multiply
   3,698.82x = 5,105.82 × 2,520.54
4. Step 4: Simplify right side
   3,698.82x = 12,869,423.54
5. Step 5: Solve for x
   x = 12,869,423.54/3,698.82
6. Step 6: Final answer
   x = 3,479.33