Finding the Fourth Proportional to 3,822.57, 5,747.72 and 3,518.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,822.57 : 5,747.72 = 3,518.04 : x
2. Step 2: Convert to fraction form
   3,822.57/5,747.72 = 3,518.04/x
3. Step 3: Cross multiply
   3,822.57x = 5,747.72 × 3,518.04
4. Step 4: Simplify right side
   3,822.57x = 20,220,691.28
5. Step 5: Solve for x
   x = 20,220,691.28/3,822.57
6. Step 6: Final answer
   x = 5,289.82