Finding the Fourth Proportional to 2,871.33, 4,307.06 and 791.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.33 : 4,307.06 = 791.34 : x
2. Step 2: Convert to fraction form
   2,871.33/4,307.06 = 791.34/x
3. Step 3: Cross multiply
   2,871.33x = 4,307.06 × 791.34
4. Step 4: Simplify right side
   2,871.33x = 3,408,348.86
5. Step 5: Solve for x
   x = 3,408,348.86/2,871.33
6. Step 6: Final answer
   x = 1,187.03