Finding the Fourth Proportional to 1,344.96, 1,855.98 and 755.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.96 : 1,855.98 = 755.55 : x
2. Step 2: Convert to fraction form
   1,344.96/1,855.98 = 755.55/x
3. Step 3: Cross multiply
   1,344.96x = 1,855.98 × 755.55
4. Step 4: Simplify right side
   1,344.96x = 1,402,285.69
5. Step 5: Solve for x
   x = 1,402,285.69/1,344.96
6. Step 6: Final answer
   x = 1,042.62