Finding the Fourth Proportional to 3,866.50, 5,795 and 1,783.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,866.50 : 5,795 = 1,783.61 : x
2. Step 2: Convert to fraction form
   3,866.50/5,795 = 1,783.61/x
3. Step 3: Cross multiply
   3,866.50x = 5,795 × 1,783.61
4. Step 4: Simplify right side
   3,866.50x = 10,336,019.95
5. Step 5: Solve for x
   x = 10,336,019.95/3,866.50
6. Step 6: Final answer
   x = 2,673.22