Finding the Fourth Proportional to 1,281.82, 1,768.94 and 757.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.82 : 1,768.94 = 757.86 : x
2. Step 2: Convert to fraction form
   1,281.82/1,768.94 = 757.86/x
3. Step 3: Cross multiply
   1,281.82x = 1,768.94 × 757.86
4. Step 4: Simplify right side
   1,281.82x = 1,340,608.87
5. Step 5: Solve for x
   x = 1,340,608.87/1,281.82
6. Step 6: Final answer
   x = 1,045.86