Finding the Fourth Proportional to 3,997.86, 5,513.94 and 2,671.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.86 : 5,513.94 = 2,671.08 : x
2. Step 2: Convert to fraction form
   3,997.86/5,513.94 = 2,671.08/x
3. Step 3: Cross multiply
   3,997.86x = 5,513.94 × 2,671.08
4. Step 4: Simplify right side
   3,997.86x = 14,728,174.86
5. Step 5: Solve for x
   x = 14,728,174.86/3,997.86
6. Step 6: Final answer
   x = 3,684.01