Finding the Fourth Proportional to 1,118.39, 1,543.53 and 676.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.39 : 1,543.53 = 676.35 : x
2. Step 2: Convert to fraction form
   1,118.39/1,543.53 = 676.35/x
3. Step 3: Cross multiply
   1,118.39x = 1,543.53 × 676.35
4. Step 4: Simplify right side
   1,118.39x = 1,043,966.52
5. Step 5: Solve for x
   x = 1,043,966.52/1,118.39
6. Step 6: Final answer
   x = 933.46