Finding the Fourth Proportional to 3,285.57, 4,536.61 and 2,168.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,285.57 : 4,536.61 = 2,168.10 : x
2. Step 2: Convert to fraction form
   3,285.57/4,536.61 = 2,168.10/x
3. Step 3: Cross multiply
   3,285.57x = 4,536.61 × 2,168.10
4. Step 4: Simplify right side
   3,285.57x = 9,835,818.72
5. Step 5: Solve for x
   x = 9,835,818.72/3,285.57
6. Step 6: Final answer
   x = 2,993.64