Finding the Fourth Proportional to 2,824.40, 3,896.52 and 2,036.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,824.40 : 3,896.52 = 2,036.72 : x
2. Step 2: Convert to fraction form
   2,824.40/3,896.52 = 2,036.72/x
3. Step 3: Cross multiply
   2,824.40x = 3,896.52 × 2,036.72
4. Step 4: Simplify right side
   2,824.40x = 7,936,120.21
5. Step 5: Solve for x
   x = 7,936,120.21/2,824.40
6. Step 6: Final answer
   x = 2,809.84