Finding the Fourth Proportional to 3,916.26, 5,404.59 and 2,147.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.26 : 5,404.59 = 2,147.94 : x
2. Step 2: Convert to fraction form
   3,916.26/5,404.59 = 2,147.94/x
3. Step 3: Cross multiply
   3,916.26x = 5,404.59 × 2,147.94
4. Step 4: Simplify right side
   3,916.26x = 11,608,735.04
5. Step 5: Solve for x
   x = 11,608,735.04/3,916.26
6. Step 6: Final answer
   x = 2,964.24