Finding the Fourth Proportional to 2,711.89, 4,067.35 and 763.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,711.89 : 4,067.35 = 763.63 : x
2. Step 2: Convert to fraction form
   2,711.89/4,067.35 = 763.63/x
3. Step 3: Cross multiply
   2,711.89x = 4,067.35 × 763.63
4. Step 4: Simplify right side
   2,711.89x = 3,105,950.48
5. Step 5: Solve for x
   x = 3,105,950.48/2,711.89
6. Step 6: Final answer
   x = 1,145.31