Finding the Fourth Proportional to 1,344.55, 1,855.51 and 755.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.55 : 1,855.51 = 755.07 : x
2. Step 2: Convert to fraction form
   1,344.55/1,855.51 = 755.07/x
3. Step 3: Cross multiply
   1,344.55x = 1,855.51 × 755.07
4. Step 4: Simplify right side
   1,344.55x = 1,401,026.88
5. Step 5: Solve for x
   x = 1,401,026.88/1,344.55
6. Step 6: Final answer
   x = 1,042.01