Finding the Fourth Proportional to 1,118.15, 1,543.81 and 676.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.15 : 1,543.81 = 676.82 : x
2. Step 2: Convert to fraction form
   1,118.15/1,543.81 = 676.82/x
3. Step 3: Cross multiply
   1,118.15x = 1,543.81 × 676.82
4. Step 4: Simplify right side
   1,118.15x = 1,044,883.65
5. Step 5: Solve for x
   x = 1,044,883.65/1,118.15
6. Step 6: Final answer
   x = 934.48