Finding the Fourth Proportional to 1,343.28, 1,851.72 and 949.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.28 : 1,851.72 = 949.68 : x
2. Step 2: Convert to fraction form
   1,343.28/1,851.72 = 949.68/x
3. Step 3: Cross multiply
   1,343.28x = 1,851.72 × 949.68
4. Step 4: Simplify right side
   1,343.28x = 1,758,541.45
5. Step 5: Solve for x
   x = 1,758,541.45/1,343.28
6. Step 6: Final answer
   x = 1,309.14