Finding the Fourth Proportional to 1,447.70, 1,995.72 and 949.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.70 : 1,995.72 = 949.47 : x
2. Step 2: Convert to fraction form
   1,447.70/1,995.72 = 949.47/x
3. Step 3: Cross multiply
   1,447.70x = 1,995.72 × 949.47
4. Step 4: Simplify right side
   1,447.70x = 1,894,876.27
5. Step 5: Solve for x
   x = 1,894,876.27/1,447.70
6. Step 6: Final answer
   x = 1,308.89