Finding the Fourth Proportional to 3,699.50, 5,105.23 and 2,020.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.50 : 5,105.23 = 2,020.84 : x
2. Step 2: Convert to fraction form
   3,699.50/5,105.23 = 2,020.84/x
3. Step 3: Cross multiply
   3,699.50x = 5,105.23 × 2,020.84
4. Step 4: Simplify right side
   3,699.50x = 10,316,835.18
5. Step 5: Solve for x
   x = 10,316,835.18/3,699.50
6. Step 6: Final answer
   x = 2,788.71