Finding the Fourth Proportional to 1,402.77, 1,936.17 and 955.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.77 : 1,936.17 = 955.38 : x
2. Step 2: Convert to fraction form
   1,402.77/1,936.17 = 955.38/x
3. Step 3: Cross multiply
   1,402.77x = 1,936.17 × 955.38
4. Step 4: Simplify right side
   1,402.77x = 1,849,778.09
5. Step 5: Solve for x
   x = 1,849,778.09/1,402.77
6. Step 6: Final answer
   x = 1,318.66