Finding the Fourth Proportional to 1,343.40, 1,850.42 and 949.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.40 : 1,850.42 = 949.74 : x
2. Step 2: Convert to fraction form
   1,343.40/1,850.42 = 949.74/x
3. Step 3: Cross multiply
   1,343.40x = 1,850.42 × 949.74
4. Step 4: Simplify right side
   1,343.40x = 1,757,417.89
5. Step 5: Solve for x
   x = 1,757,417.89/1,343.40
6. Step 6: Final answer
   x = 1,308.19