Finding the Fourth Proportional to 1,369.76, 1,889.79 and 950

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.76 : 1,889.79 = 950 : x
2. Step 2: Convert to fraction form
   1,369.76/1,889.79 = 950/x
3. Step 3: Cross multiply
   1,369.76x = 1,889.79 × 950
4. Step 4: Simplify right side
   1,369.76x = 1,795,300.50
5. Step 5: Solve for x
   x = 1,795,300.50/1,369.76
6. Step 6: Final answer
   x = 1,310.67