Finding the Fourth Proportional to 3,961.77, 5,940.90 and 2,112.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,961.77 : 5,940.90 = 2,112.54 : x
2. Step 2: Convert to fraction form
   3,961.77/5,940.90 = 2,112.54/x
3. Step 3: Cross multiply
   3,961.77x = 5,940.90 × 2,112.54
4. Step 4: Simplify right side
   3,961.77x = 12,550,388.89
5. Step 5: Solve for x
   x = 12,550,388.89/3,961.77
6. Step 6: Final answer
   x = 3,167.87