Finding the Fourth Proportional to 2,182.42, 3,274.12 and 721.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.42 : 3,274.12 = 721.52 : x
2. Step 2: Convert to fraction form
   2,182.42/3,274.12 = 721.52/x
3. Step 3: Cross multiply
   2,182.42x = 3,274.12 × 721.52
4. Step 4: Simplify right side
   2,182.42x = 2,362,343.06
5. Step 5: Solve for x
   x = 2,362,343.06/2,182.42
6. Step 6: Final answer
   x = 1,082.44