Finding the Fourth Proportional to 3,699.09, 5,104.71 and 2,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.09 : 5,104.71 = 2,020.50 : x
2. Step 2: Convert to fraction form
   3,699.09/5,104.71 = 2,020.50/x
3. Step 3: Cross multiply
   3,699.09x = 5,104.71 × 2,020.50
4. Step 4: Simplify right side
   3,699.09x = 10,314,046.08
5. Step 5: Solve for x
   x = 10,314,046.08/3,699.09
6. Step 6: Final answer
   x = 2,788.27