Finding the Fourth Proportional to 2,892.30, 3,993.67 and 2,671.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.30 : 3,993.67 = 2,671.17 : x
2. Step 2: Convert to fraction form
   2,892.30/3,993.67 = 2,671.17/x
3. Step 3: Cross multiply
   2,892.30x = 3,993.67 × 2,671.17
4. Step 4: Simplify right side
   2,892.30x = 10,667,771.49
5. Step 5: Solve for x
   x = 10,667,771.49/2,892.30
6. Step 6: Final answer
   x = 3,688.34