Finding the Fourth Proportional to 3,699.46, 5,105.28 and 2,020.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.46 : 5,105.28 = 2,020.83 : x
2. Step 2: Convert to fraction form
   3,699.46/5,105.28 = 2,020.83/x
3. Step 3: Cross multiply
   3,699.46x = 5,105.28 × 2,020.83
4. Step 4: Simplify right side
   3,699.46x = 10,316,902.98
5. Step 5: Solve for x
   x = 10,316,902.98/3,699.46
6. Step 6: Final answer
   x = 2,788.76