Finding the Fourth Proportional to 2,009.20, 3,013.92 and 1,036.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.20 : 3,013.92 = 1,036.48 : x
2. Step 2: Convert to fraction form
   2,009.20/3,013.92 = 1,036.48/x
3. Step 3: Cross multiply
   2,009.20x = 3,013.92 × 1,036.48
4. Step 4: Simplify right side
   2,009.20x = 3,123,867.80
5. Step 5: Solve for x
   x = 3,123,867.80/2,009.20
6. Step 6: Final answer
   x = 1,554.78