Finding the Fourth Proportional to 1,109.30, 1,529.69 and 759.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.30 : 1,529.69 = 759.38 : x
2. Step 2: Convert to fraction form
   1,109.30/1,529.69 = 759.38/x
3. Step 3: Cross multiply
   1,109.30x = 1,529.69 × 759.38
4. Step 4: Simplify right side
   1,109.30x = 1,161,604.55
5. Step 5: Solve for x
   x = 1,161,604.55/1,109.30
6. Step 6: Final answer
   x = 1,047.16