Finding the Fourth Proportional to 2,217.83, 3,325.82 and 657.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.83 : 3,325.82 = 657.27 : x
2. Step 2: Convert to fraction form
   2,217.83/3,325.82 = 657.27/x
3. Step 3: Cross multiply
   2,217.83x = 3,325.82 × 657.27
4. Step 4: Simplify right side
   2,217.83x = 2,185,958.43
5. Step 5: Solve for x
   x = 2,185,958.43/2,217.83
6. Step 6: Final answer
   x = 985.63