Finding the Fourth Proportional to 3,823.61, 5,728.76 and 2,069.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,823.61 : 5,728.76 = 2,069.82 : x
2. Step 2: Convert to fraction form
   3,823.61/5,728.76 = 2,069.82/x
3. Step 3: Cross multiply
   3,823.61x = 5,728.76 × 2,069.82
4. Step 4: Simplify right side
   3,823.61x = 11,857,507.20
5. Step 5: Solve for x
   x = 11,857,507.20/3,823.61
6. Step 6: Final answer
   x = 3,101.13