Finding the Fourth Proportional to 1,281.06, 1,768.06 and 757.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.06 : 1,768.06 = 757.34 : x
2. Step 2: Convert to fraction form
   1,281.06/1,768.06 = 757.34/x
3. Step 3: Cross multiply
   1,281.06x = 1,768.06 × 757.34
4. Step 4: Simplify right side
   1,281.06x = 1,339,022.56
5. Step 5: Solve for x
   x = 1,339,022.56/1,281.06
6. Step 6: Final answer
   x = 1,045.25