Finding the Fourth Proportional to 1,344.71, 1,855.71 and 755.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.71 : 1,855.71 = 755.25 : x
2. Step 2: Convert to fraction form
   1,344.71/1,855.71 = 755.25/x
3. Step 3: Cross multiply
   1,344.71x = 1,855.71 × 755.25
4. Step 4: Simplify right side
   1,344.71x = 1,401,521.20
5. Step 5: Solve for x
   x = 1,401,521.20/1,344.71
6. Step 6: Final answer
   x = 1,042.25