Finding the Fourth Proportional to 3,916.26, 5,404.46 and 2,148.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.26 : 5,404.46 = 2,148.03 : x
2. Step 2: Convert to fraction form
   3,916.26/5,404.46 = 2,148.03/x
3. Step 3: Cross multiply
   3,916.26x = 5,404.46 × 2,148.03
4. Step 4: Simplify right side
   3,916.26x = 11,608,931.47
5. Step 5: Solve for x
   x = 11,608,931.47/3,916.26
6. Step 6: Final answer
   x = 2,964.29