Finding the Fourth Proportional to 2,707.31, 4,061.16 and 759.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.31 : 4,061.16 = 759.66 : x
2. Step 2: Convert to fraction form
   2,707.31/4,061.16 = 759.66/x
3. Step 3: Cross multiply
   2,707.31x = 4,061.16 × 759.66
4. Step 4: Simplify right side
   2,707.31x = 3,085,100.81
5. Step 5: Solve for x
   x = 3,085,100.81/2,707.31
6. Step 6: Final answer
   x = 1,139.55