Finding the Fourth Proportional to 3,635.45, 5,456.41 and 2,540.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,635.45 : 5,456.41 = 2,540.69 : x
2. Step 2: Convert to fraction form
   3,635.45/5,456.41 = 2,540.69/x
3. Step 3: Cross multiply
   3,635.45x = 5,456.41 × 2,540.69
4. Step 4: Simplify right side
   3,635.45x = 13,863,012.69
5. Step 5: Solve for x
   x = 13,863,012.69/3,635.45
6. Step 6: Final answer
   x = 3,813.29