Finding the Fourth Proportional to 1,323.27, 1,986.12 and 674.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.27 : 1,986.12 = 674.46 : x
2. Step 2: Convert to fraction form
   1,323.27/1,986.12 = 674.46/x
3. Step 3: Cross multiply
   1,323.27x = 1,986.12 × 674.46
4. Step 4: Simplify right side
   1,323.27x = 1,339,558.50
5. Step 5: Solve for x
   x = 1,339,558.50/1,323.27
6. Step 6: Final answer
   x = 1,012.31