Finding the Fourth Proportional to 3,992.87, 5,512.17 and 3,094.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.87 : 5,512.17 = 3,094.61 : x
2. Step 2: Convert to fraction form
   3,992.87/5,512.17 = 3,094.61/x
3. Step 3: Cross multiply
   3,992.87x = 5,512.17 × 3,094.61
4. Step 4: Simplify right side
   3,992.87x = 17,058,016.40
5. Step 5: Solve for x
   x = 17,058,016.40/3,992.87
6. Step 6: Final answer
   x = 4,272.12