Finding the Fourth Proportional to 3,699.27, 5,105.04 and 2,020.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.27 : 5,105.04 = 2,020.70 : x
2. Step 2: Convert to fraction form
   3,699.27/5,105.04 = 2,020.70/x
3. Step 3: Cross multiply
   3,699.27x = 5,105.04 × 2,020.70
4. Step 4: Simplify right side
   3,699.27x = 10,315,754.33
5. Step 5: Solve for x
   x = 10,315,754.33/3,699.27
6. Step 6: Final answer
   x = 2,788.59