Finding the Fourth Proportional to 1,343.76, 1,854.52 and 754.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.76 : 1,854.52 = 754.40 : x
2. Step 2: Convert to fraction form
   1,343.76/1,854.52 = 754.40/x
3. Step 3: Cross multiply
   1,343.76x = 1,854.52 × 754.40
4. Step 4: Simplify right side
   1,343.76x = 1,399,049.89
5. Step 5: Solve for x
   x = 1,399,049.89/1,343.76
6. Step 6: Final answer
   x = 1,041.15