Finding the Fourth Proportional to 1,368.63, 1,889.33 and 950.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.63 : 1,889.33 = 950.40 : x
2. Step 2: Convert to fraction form
   1,368.63/1,889.33 = 950.40/x
3. Step 3: Cross multiply
   1,368.63x = 1,889.33 × 950.40
4. Step 4: Simplify right side
   1,368.63x = 1,795,614.48
5. Step 5: Solve for x
   x = 1,795,614.48/1,368.63
6. Step 6: Final answer
   x = 1,311.98