Finding the Fourth Proportional to 3,992.37, 5,992.25 and 2,019.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.37 : 5,992.25 = 2,019.40 : x
2. Step 2: Convert to fraction form
   3,992.37/5,992.25 = 2,019.40/x
3. Step 3: Cross multiply
   3,992.37x = 5,992.25 × 2,019.40
4. Step 4: Simplify right side
   3,992.37x = 12,100,741.61
5. Step 5: Solve for x
   x = 12,100,741.61/3,992.37
6. Step 6: Final answer
   x = 3,030.97