Finding the Fourth Proportional to 2,707.59, 4,061.34 and 759.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.59 : 4,061.34 = 759.90 : x
2. Step 2: Convert to fraction form
   2,707.59/4,061.34 = 759.90/x
3. Step 3: Cross multiply
   2,707.59x = 4,061.34 × 759.90
4. Step 4: Simplify right side
   2,707.59x = 3,086,212.27
5. Step 5: Solve for x
   x = 3,086,212.27/2,707.59
6. Step 6: Final answer
   x = 1,139.84