Finding the Fourth Proportional to 1,118.69, 1,543.31 and 676.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.69 : 1,543.31 = 676.34 : x
2. Step 2: Convert to fraction form
   1,118.69/1,543.31 = 676.34/x
3. Step 3: Cross multiply
   1,118.69x = 1,543.31 × 676.34
4. Step 4: Simplify right side
   1,118.69x = 1,043,796.26
5. Step 5: Solve for x
   x = 1,043,796.26/1,118.69
6. Step 6: Final answer
   x = 933.05