Finding the Fourth Proportional to 1,118.30, 1,543.28 and 676.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.30 : 1,543.28 = 676.12 : x
2. Step 2: Convert to fraction form
   1,118.30/1,543.28 = 676.12/x
3. Step 3: Cross multiply
   1,118.30x = 1,543.28 × 676.12
4. Step 4: Simplify right side
   1,118.30x = 1,043,442.47
5. Step 5: Solve for x
   x = 1,043,442.47/1,118.30
6. Step 6: Final answer
   x = 933.06