Finding the Fourth Proportional to 1,146.57, 1,582.18 and 674.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.57 : 1,582.18 = 674.49 : x
2. Step 2: Convert to fraction form
   1,146.57/1,582.18 = 674.49/x
3. Step 3: Cross multiply
   1,146.57x = 1,582.18 × 674.49
4. Step 4: Simplify right side
   1,146.57x = 1,067,153.30
5. Step 5: Solve for x
   x = 1,067,153.30/1,146.57
6. Step 6: Final answer
   x = 930.74