Finding the Fourth Proportional to 3,914.56, 5,866.34 and 2,160.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.56 : 5,866.34 = 2,160.38 : x
2. Step 2: Convert to fraction form
   3,914.56/5,866.34 = 2,160.38/x
3. Step 3: Cross multiply
   3,914.56x = 5,866.34 × 2,160.38
4. Step 4: Simplify right side
   3,914.56x = 12,673,523.61
5. Step 5: Solve for x
   x = 12,673,523.61/3,914.56
6. Step 6: Final answer
   x = 3,237.53