Finding the Fourth Proportional to 1,344.80, 1,855.71 and 755.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.80 : 1,855.71 = 755.33 : x
2. Step 2: Convert to fraction form
   1,344.80/1,855.71 = 755.33/x
3. Step 3: Cross multiply
   1,344.80x = 1,855.71 × 755.33
4. Step 4: Simplify right side
   1,344.80x = 1,401,664.16
5. Step 5: Solve for x
   x = 1,401,664.16/1,344.80
6. Step 6: Final answer
   x = 1,042.28