Finding the Fourth Proportional to 2,496.38, 3,744.34 and 853.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,496.38 : 3,744.34 = 853.10 : x
2. Step 2: Convert to fraction form
   2,496.38/3,744.34 = 853.10/x
3. Step 3: Cross multiply
   2,496.38x = 3,744.34 × 853.10
4. Step 4: Simplify right side
   2,496.38x = 3,194,273.47
5. Step 5: Solve for x
   x = 3,194,273.47/2,496.38
6. Step 6: Final answer
   x = 1,279.56