Finding the Fourth Proportional to 2,636.49, 3,932.42 and 2,287.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.49 : 3,932.42 = 2,287.04 : x
2. Step 2: Convert to fraction form
   2,636.49/3,932.42 = 2,287.04/x
3. Step 3: Cross multiply
   2,636.49x = 3,932.42 × 2,287.04
4. Step 4: Simplify right side
   2,636.49x = 8,993,601.84
5. Step 5: Solve for x
   x = 8,993,601.84/2,636.49
6. Step 6: Final answer
   x = 3,411.20