Finding the Fourth Proportional to 1,116.23, 1,540.04 and 674.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.23 : 1,540.04 = 674.10 : x
2. Step 2: Convert to fraction form
   1,116.23/1,540.04 = 674.10/x
3. Step 3: Cross multiply
   1,116.23x = 1,540.04 × 674.10
4. Step 4: Simplify right side
   1,116.23x = 1,038,137.59
5. Step 5: Solve for x
   x = 1,038,137.59/1,116.23
6. Step 6: Final answer
   x = 930.04