Finding the Fourth Proportional to 1,422.72, 1,962.72 and 950.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.72 : 1,962.72 = 950.49 : x
2. Step 2: Convert to fraction form
   1,422.72/1,962.72 = 950.49/x
3. Step 3: Cross multiply
   1,422.72x = 1,962.72 × 950.49
4. Step 4: Simplify right side
   1,422.72x = 1,865,545.73
5. Step 5: Solve for x
   x = 1,865,545.73/1,422.72
6. Step 6: Final answer
   x = 1,311.25