Finding the Fourth Proportional to 3,962.25, 5,942.17 and 2,087.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,962.25 : 5,942.17 = 2,087.12 : x
2. Step 2: Convert to fraction form
   3,962.25/5,942.17 = 2,087.12/x
3. Step 3: Cross multiply
   3,962.25x = 5,942.17 × 2,087.12
4. Step 4: Simplify right side
   3,962.25x = 12,402,021.85
5. Step 5: Solve for x
   x = 12,402,021.85/3,962.25
6. Step 6: Final answer
   x = 3,130.05