Finding the Fourth Proportional to 1,281.82, 1,768.25 and 757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.82 : 1,768.25 = 757.50 : x
2. Step 2: Convert to fraction form
   1,281.82/1,768.25 = 757.50/x
3. Step 3: Cross multiply
   1,281.82x = 1,768.25 × 757.50
4. Step 4: Simplify right side
   1,281.82x = 1,339,449.38
5. Step 5: Solve for x
   x = 1,339,449.38/1,281.82
6. Step 6: Final answer
   x = 1,044.96