Finding the Fourth Proportional to 1,146.55, 1,582.20 and 674.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.55 : 1,582.20 = 674.43 : x
2. Step 2: Convert to fraction form
   1,146.55/1,582.20 = 674.43/x
3. Step 3: Cross multiply
   1,146.55x = 1,582.20 × 674.43
4. Step 4: Simplify right side
   1,146.55x = 1,067,083.15
5. Step 5: Solve for x
   x = 1,067,083.15/1,146.55
6. Step 6: Final answer
   x = 930.69