Finding the Fourth Proportional to 1,343.98, 1,854.87 and 754.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.98 : 1,854.87 = 754.55 : x
2. Step 2: Convert to fraction form
   1,343.98/1,854.87 = 754.55/x
3. Step 3: Cross multiply
   1,343.98x = 1,854.87 × 754.55
4. Step 4: Simplify right side
   1,343.98x = 1,399,592.16
5. Step 5: Solve for x
   x = 1,399,592.16/1,343.98
6. Step 6: Final answer
   x = 1,041.38