Finding the Fourth Proportional to 2,182.82, 3,273.30 and 721.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.82 : 3,273.30 = 721.62 : x
2. Step 2: Convert to fraction form
   2,182.82/3,273.30 = 721.62/x
3. Step 3: Cross multiply
   2,182.82x = 3,273.30 × 721.62
4. Step 4: Simplify right side
   2,182.82x = 2,362,078.75
5. Step 5: Solve for x
   x = 2,362,078.75/2,182.82
6. Step 6: Final answer
   x = 1,082.13