Finding the Fourth Proportional to 3,916.33, 5,404.53 and 2,147.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.33 : 5,404.53 = 2,147.94 : x
2. Step 2: Convert to fraction form
   3,916.33/5,404.53 = 2,147.94/x
3. Step 3: Cross multiply
   3,916.33x = 5,404.53 × 2,147.94
4. Step 4: Simplify right side
   3,916.33x = 11,608,606.17
5. Step 5: Solve for x
   x = 11,608,606.17/3,916.33
6. Step 6: Final answer
   x = 2,964.15