Finding the Fourth Proportional to 3,697.92, 5,517.78 and 3,572.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,697.92 : 5,517.78 = 3,572.64 : x
2. Step 2: Convert to fraction form
   3,697.92/5,517.78 = 3,572.64/x
3. Step 3: Cross multiply
   3,697.92x = 5,517.78 × 3,572.64
4. Step 4: Simplify right side
   3,697.92x = 19,713,041.54
5. Step 5: Solve for x
   x = 19,713,041.54/3,697.92
6. Step 6: Final answer
   x = 5,330.85