Finding the Fourth Proportional to 3,910.38, 5,396.32 and 2,141.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.38 : 5,396.32 = 2,141.98 : x
2. Step 2: Convert to fraction form
   3,910.38/5,396.32 = 2,141.98/x
3. Step 3: Cross multiply
   3,910.38x = 5,396.32 × 2,141.98
4. Step 4: Simplify right side
   3,910.38x = 11,558,809.51
5. Step 5: Solve for x
   x = 11,558,809.51/3,910.38
6. Step 6: Final answer
   x = 2,955.93