Finding the Fourth Proportional to 2,462.43, 3,396.60 and 1,578.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,462.43 : 3,396.60 = 1,578.81 : x
2. Step 2: Convert to fraction form
   2,462.43/3,396.60 = 1,578.81/x
3. Step 3: Cross multiply
   2,462.43x = 3,396.60 × 1,578.81
4. Step 4: Simplify right side
   2,462.43x = 5,362,586.05
5. Step 5: Solve for x
   x = 5,362,586.05/2,462.43
6. Step 6: Final answer
   x = 2,177.76