Finding the Fourth Proportional to 1,146.29, 1,581.50 and 674.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.29 : 1,581.50 = 674.12 : x
2. Step 2: Convert to fraction form
   1,146.29/1,581.50 = 674.12/x
3. Step 3: Cross multiply
   1,146.29x = 1,581.50 × 674.12
4. Step 4: Simplify right side
   1,146.29x = 1,066,109.50
5. Step 5: Solve for x
   x = 1,066,109.50/1,146.29
6. Step 6: Final answer
   x = 930.05