Finding the Fourth Proportional to 1,408.83, 1,944.31 and 935.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.83 : 1,944.31 = 935.89 : x
2. Step 2: Convert to fraction form
   1,408.83/1,944.31 = 935.89/x
3. Step 3: Cross multiply
   1,408.83x = 1,944.31 × 935.89
4. Step 4: Simplify right side
   1,408.83x = 1,819,653.09
5. Step 5: Solve for x
   x = 1,819,653.09/1,408.83
6. Step 6: Final answer
   x = 1,291.61