Finding the Fourth Proportional to 1,281.69, 1,922.38 and 754.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.69 : 1,922.38 = 754.91 : x
2. Step 2: Convert to fraction form
   1,281.69/1,922.38 = 754.91/x
3. Step 3: Cross multiply
   1,281.69x = 1,922.38 × 754.91
4. Step 4: Simplify right side
   1,281.69x = 1,451,223.89
5. Step 5: Solve for x
   x = 1,451,223.89/1,281.69
6. Step 6: Final answer
   x = 1,132.27