Finding the Fourth Proportional to 1,644.08, 2,268.88 and 935.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.08 : 2,268.88 = 935.98 : x
2. Step 2: Convert to fraction form
   1,644.08/2,268.88 = 935.98/x
3. Step 3: Cross multiply
   1,644.08x = 2,268.88 × 935.98
4. Step 4: Simplify right side
   1,644.08x = 2,123,618.29
5. Step 5: Solve for x
   x = 2,123,618.29/1,644.08
6. Step 6: Final answer
   x = 1,291.68