Finding the Fourth Proportional to 4,076.55, 5,617.58 and 2,894.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,076.55 : 5,617.58 = 2,894.31 : x
2. Step 2: Convert to fraction form
   4,076.55/5,617.58 = 2,894.31/x
3. Step 3: Cross multiply
   4,076.55x = 5,617.58 × 2,894.31
4. Step 4: Simplify right side
   4,076.55x = 16,259,003.50
5. Step 5: Solve for x
   x = 16,259,003.50/4,076.55
6. Step 6: Final answer
   x = 3,988.42