Finding the Fourth Proportional to 1,408.99, 1,944.46 and 936.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.99 : 1,944.46 = 936.07 : x
2. Step 2: Convert to fraction form
   1,408.99/1,944.46 = 936.07/x
3. Step 3: Cross multiply
   1,408.99x = 1,944.46 × 936.07
4. Step 4: Simplify right side
   1,408.99x = 1,820,150.67
5. Step 5: Solve for x
   x = 1,820,150.67/1,408.99
6. Step 6: Final answer
   x = 1,291.81