Finding the Fourth Proportional to 2,067.58, 3,101.91 and 768.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.58 : 3,101.91 = 768.34 : x
2. Step 2: Convert to fraction form
   2,067.58/3,101.91 = 768.34/x
3. Step 3: Cross multiply
   2,067.58x = 3,101.91 × 768.34
4. Step 4: Simplify right side
   2,067.58x = 2,383,321.53
5. Step 5: Solve for x
   x = 2,383,321.53/2,067.58
6. Step 6: Final answer
   x = 1,152.71