Finding the Fourth Proportional to 2,761.75, 4,142.60 and 1,118.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,761.75 : 4,142.60 = 1,118.27 : x
2. Step 2: Convert to fraction form
   2,761.75/4,142.60 = 1,118.27/x
3. Step 3: Cross multiply
   2,761.75x = 4,142.60 × 1,118.27
4. Step 4: Simplify right side
   2,761.75x = 4,632,530.96
5. Step 5: Solve for x
   x = 4,632,530.96/2,761.75
6. Step 6: Final answer
   x = 1,677.39