Finding the Fourth Proportional to 2,436.96, 3,651.60 and 1,394.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.96 : 3,651.60 = 1,394.40 : x
2. Step 2: Convert to fraction form
   2,436.96/3,651.60 = 1,394.40/x
3. Step 3: Cross multiply
   2,436.96x = 3,651.60 × 1,394.40
4. Step 4: Simplify right side
   2,436.96x = 5,091,791.04
5. Step 5: Solve for x
   x = 5,091,791.04/2,436.96
6. Step 6: Final answer
   x = 2,089.40