Finding the Fourth Proportional to 2,472.36, 3,410.82 and 1,621.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.36 : 3,410.82 = 1,621.38 : x
2. Step 2: Convert to fraction form
   2,472.36/3,410.82 = 1,621.38/x
3. Step 3: Cross multiply
   2,472.36x = 3,410.82 × 1,621.38
4. Step 4: Simplify right side
   2,472.36x = 5,530,235.33
5. Step 5: Solve for x
   x = 5,530,235.33/2,472.36
6. Step 6: Final answer
   x = 2,236.82