Finding the Fourth Proportional to 2,767.30, 4,150.98 and 687.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.30 : 4,150.98 = 687.34 : x
2. Step 2: Convert to fraction form
   2,767.30/4,150.98 = 687.34/x
3. Step 3: Cross multiply
   2,767.30x = 4,150.98 × 687.34
4. Step 4: Simplify right side
   2,767.30x = 2,853,134.59
5. Step 5: Solve for x
   x = 2,853,134.59/2,767.30
6. Step 6: Final answer
   x = 1,031.02