Finding the Fourth Proportional to 3,694.57, 5,520.21 and 3,565.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,694.57 : 5,520.21 = 3,565.37 : x
2. Step 2: Convert to fraction form
   3,694.57/5,520.21 = 3,565.37/x
3. Step 3: Cross multiply
   3,694.57x = 5,520.21 × 3,565.37
4. Step 4: Simplify right side
   3,694.57x = 19,681,591.56
5. Step 5: Solve for x
   x = 19,681,591.56/3,694.57
6. Step 6: Final answer
   x = 5,327.17