Finding the Fourth Proportional to 1,116.29, 1,540.25 and 674.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.29 : 1,540.25 = 674.22 : x
2. Step 2: Convert to fraction form
   1,116.29/1,540.25 = 674.22/x
3. Step 3: Cross multiply
   1,116.29x = 1,540.25 × 674.22
4. Step 4: Simplify right side
   1,116.29x = 1,038,463.98
5. Step 5: Solve for x
   x = 1,038,463.98/1,116.29
6. Step 6: Final answer
   x = 930.29