Finding the Fourth Proportional to 1,146.55, 1,582.50 and 674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.55 : 1,582.50 = 674.50 : x
2. Step 2: Convert to fraction form
   1,146.55/1,582.50 = 674.50/x
3. Step 3: Cross multiply
   1,146.55x = 1,582.50 × 674.50
4. Step 4: Simplify right side
   1,146.55x = 1,067,396.25
5. Step 5: Solve for x
   x = 1,067,396.25/1,146.55
6. Step 6: Final answer
   x = 930.96