Finding the Fourth Proportional to 3,961.15, 5,942.63 and 2,111.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,961.15 : 5,942.63 = 2,111.29 : x
2. Step 2: Convert to fraction form
   3,961.15/5,942.63 = 2,111.29/x
3. Step 3: Cross multiply
   3,961.15x = 5,942.63 × 2,111.29
4. Step 4: Simplify right side
   3,961.15x = 12,546,605.71
5. Step 5: Solve for x
   x = 12,546,605.71/3,961.15
6. Step 6: Final answer
   x = 3,167.42