Finding the Fourth Proportional to 1,736.78, 2,396.72 and 950.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.78 : 2,396.72 = 950.80 : x
2. Step 2: Convert to fraction form
   1,736.78/2,396.72 = 950.80/x
3. Step 3: Cross multiply
   1,736.78x = 2,396.72 × 950.80
4. Step 4: Simplify right side
   1,736.78x = 2,278,801.38
5. Step 5: Solve for x
   x = 2,278,801.38/1,736.78
6. Step 6: Final answer
   x = 1,312.08