Finding the Fourth Proportional to 1,131.92, 1,561.79 and 759.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.92 : 1,561.79 = 759.59 : x
2. Step 2: Convert to fraction form
   1,131.92/1,561.79 = 759.59/x
3. Step 3: Cross multiply
   1,131.92x = 1,561.79 × 759.59
4. Step 4: Simplify right side
   1,131.92x = 1,186,316.27
5. Step 5: Solve for x
   x = 1,186,316.27/1,131.92
6. Step 6: Final answer
   x = 1,048.06