Finding the Fourth Proportional to 2,950.79, 4,426.43 and 759.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,950.79 : 4,426.43 = 759.50 : x
2. Step 2: Convert to fraction form
   2,950.79/4,426.43 = 759.50/x
3. Step 3: Cross multiply
   2,950.79x = 4,426.43 × 759.50
4. Step 4: Simplify right side
   2,950.79x = 3,361,853.35
5. Step 5: Solve for x
   x = 3,361,853.35/2,950.79
6. Step 6: Final answer
   x = 1,139.31