Finding the Fourth Proportional to 2,621.82, 3,932.97 and 674.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.82 : 3,932.97 = 674.04 : x
2. Step 2: Convert to fraction form
   2,621.82/3,932.97 = 674.04/x
3. Step 3: Cross multiply
   2,621.82x = 3,932.97 × 674.04
4. Step 4: Simplify right side
   2,621.82x = 2,650,979.10
5. Step 5: Solve for x
   x = 2,650,979.10/2,621.82
6. Step 6: Final answer
   x = 1,011.12