Finding the Fourth Proportional to 1,118.75, 1,675.42 and 672.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.75 : 1,675.42 = 672.73 : x
2. Step 2: Convert to fraction form
   1,118.75/1,675.42 = 672.73/x
3. Step 3: Cross multiply
   1,118.75x = 1,675.42 × 672.73
4. Step 4: Simplify right side
   1,118.75x = 1,127,099.43
5. Step 5: Solve for x
   x = 1,127,099.43/1,118.75
6. Step 6: Final answer
   x = 1,007.47