Finding the Fourth Proportional to 1,644.24, 2,268.92 and 936.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.24 : 2,268.92 = 936.10 : x
2. Step 2: Convert to fraction form
   1,644.24/2,268.92 = 936.10/x
3. Step 3: Cross multiply
   1,644.24x = 2,268.92 × 936.10
4. Step 4: Simplify right side
   1,644.24x = 2,123,936.01
5. Step 5: Solve for x
   x = 2,123,936.01/1,644.24
6. Step 6: Final answer
   x = 1,291.74