Finding the Fourth Proportional to 2,711.30, 4,067.72 and 763.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,711.30 : 4,067.72 = 763.52 : x
2. Step 2: Convert to fraction form
   2,711.30/4,067.72 = 763.52/x
3. Step 3: Cross multiply
   2,711.30x = 4,067.72 × 763.52
4. Step 4: Simplify right side
   2,711.30x = 3,105,781.76
5. Step 5: Solve for x
   x = 3,105,781.76/2,711.30
6. Step 6: Final answer
   x = 1,145.50