Finding the Fourth Proportional to 3,986.89, 5,976.05 and 3,802.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.89 : 5,976.05 = 3,802.88 : x
2. Step 2: Convert to fraction form
   3,986.89/5,976.05 = 3,802.88/x
3. Step 3: Cross multiply
   3,986.89x = 5,976.05 × 3,802.88
4. Step 4: Simplify right side
   3,986.89x = 22,726,196.95
5. Step 5: Solve for x
   x = 22,726,196.95/3,986.89
6. Step 6: Final answer
   x = 5,700.24