Finding the Fourth Proportional to 3,910.16, 5,396.04 and 2,141.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.16 : 5,396.04 = 2,141.89 : x
2. Step 2: Convert to fraction form
   3,910.16/5,396.04 = 2,141.89/x
3. Step 3: Cross multiply
   3,910.16x = 5,396.04 × 2,141.89
4. Step 4: Simplify right side
   3,910.16x = 11,557,724.12
5. Step 5: Solve for x
   x = 11,557,724.12/3,910.16
6. Step 6: Final answer
   x = 2,955.82