Finding the Fourth Proportional to 3,802.23, 5,239.17 and 3,553.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,802.23 : 5,239.17 = 3,553.83 : x
2. Step 2: Convert to fraction form
   3,802.23/5,239.17 = 3,553.83/x
3. Step 3: Cross multiply
   3,802.23x = 5,239.17 × 3,553.83
4. Step 4: Simplify right side
   3,802.23x = 18,619,119.52
5. Step 5: Solve for x
   x = 18,619,119.52/3,802.23
6. Step 6: Final answer
   x = 4,896.89