Finding the Fourth Proportional to 3,185.72, 4,398.41 and 1,992.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.72 : 4,398.41 = 1,992.51 : x
2. Step 2: Convert to fraction form
   3,185.72/4,398.41 = 1,992.51/x
3. Step 3: Cross multiply
   3,185.72x = 4,398.41 × 1,992.51
4. Step 4: Simplify right side
   3,185.72x = 8,763,880.89
5. Step 5: Solve for x
   x = 8,763,880.89/3,185.72
6. Step 6: Final answer
   x = 2,750.99