Finding the Fourth Proportional to 2,692.36, 4,036.15 and 936.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,692.36 : 4,036.15 = 936.15 : x
2. Step 2: Convert to fraction form
   2,692.36/4,036.15 = 936.15/x
3. Step 3: Cross multiply
   2,692.36x = 4,036.15 × 936.15
4. Step 4: Simplify right side
   2,692.36x = 3,778,441.82
5. Step 5: Solve for x
   x = 3,778,441.82/2,692.36
6. Step 6: Final answer
   x = 1,403.39