Finding the Fourth Proportional to 3,900.69, 5,843.22 and 1,817.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.69 : 5,843.22 = 1,817.85 : x
2. Step 2: Convert to fraction form
   3,900.69/5,843.22 = 1,817.85/x
3. Step 3: Cross multiply
   3,900.69x = 5,843.22 × 1,817.85
4. Step 4: Simplify right side
   3,900.69x = 10,622,097.48
5. Step 5: Solve for x
   x = 10,622,097.48/3,900.69
6. Step 6: Final answer
   x = 2,723.13