Finding the Fourth Proportional to 3,985.96, 5,942.04 and 3,922.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.96 : 5,942.04 = 3,922.80 : x
2. Step 2: Convert to fraction form
   3,985.96/5,942.04 = 3,922.80/x
3. Step 3: Cross multiply
   3,985.96x = 5,942.04 × 3,922.80
4. Step 4: Simplify right side
   3,985.96x = 23,309,434.51
5. Step 5: Solve for x
   x = 23,309,434.51/3,985.96
6. Step 6: Final answer
   x = 5,847.88