Finding the Fourth Proportional to 3,699.58, 5,105.25 and 2,021.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.58 : 5,105.25 = 2,021.06 : x
2. Step 2: Convert to fraction form
   3,699.58/5,105.25 = 2,021.06/x
3. Step 3: Cross multiply
   3,699.58x = 5,105.25 × 2,021.06
4. Step 4: Simplify right side
   3,699.58x = 10,318,016.57
5. Step 5: Solve for x
   x = 10,318,016.57/3,699.58
6. Step 6: Final answer
   x = 2,788.97