Finding the Fourth Proportional to 3,522.89, 5,310.78 and 3,285.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,522.89 : 5,310.78 = 3,285.08 : x
2. Step 2: Convert to fraction form
   3,522.89/5,310.78 = 3,285.08/x
3. Step 3: Cross multiply
   3,522.89x = 5,310.78 × 3,285.08
4. Step 4: Simplify right side
   3,522.89x = 17,446,337.16
5. Step 5: Solve for x
   x = 17,446,337.16/3,522.89
6. Step 6: Final answer
   x = 4,952.28