Finding the Fourth Proportional to 3,483.69, 5,218.70 and 2,019.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,483.69 : 5,218.70 = 2,019.77 : x
2. Step 2: Convert to fraction form
   3,483.69/5,218.70 = 2,019.77/x
3. Step 3: Cross multiply
   3,483.69x = 5,218.70 × 2,019.77
4. Step 4: Simplify right side
   3,483.69x = 10,540,537.51
5. Step 5: Solve for x
   x = 10,540,537.51/3,483.69
6. Step 6: Final answer
   x = 3,025.68