Finding the Fourth Proportional to 3,914.09, 5,868.54 and 2,159.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.09 : 5,868.54 = 2,159.94 : x
2. Step 2: Convert to fraction form
   3,914.09/5,868.54 = 2,159.94/x
3. Step 3: Cross multiply
   3,914.09x = 5,868.54 × 2,159.94
4. Step 4: Simplify right side
   3,914.09x = 12,675,672.28
5. Step 5: Solve for x
   x = 12,675,672.28/3,914.09
6. Step 6: Final answer
   x = 3,238.47