Finding the Fourth Proportional to 1,268.89, 1,905.68 and 1,038.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268.89 : 1,905.68 = 1,038.27 : x
2. Step 2: Convert to fraction form
   1,268.89/1,905.68 = 1,038.27/x
3. Step 3: Cross multiply
   1,268.89x = 1,905.68 × 1,038.27
4. Step 4: Simplify right side
   1,268.89x = 1,978,610.37
5. Step 5: Solve for x
   x = 1,978,610.37/1,268.89
6. Step 6: Final answer
   x = 1,559.32