Finding the Fourth Proportional to 2,443.23, 3,372.44 and 1,561.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.23 : 3,372.44 = 1,561.41 : x
2. Step 2: Convert to fraction form
   2,443.23/3,372.44 = 1,561.41/x
3. Step 3: Cross multiply
   2,443.23x = 3,372.44 × 1,561.41
4. Step 4: Simplify right side
   2,443.23x = 5,265,753.73
5. Step 5: Solve for x
   x = 5,265,753.73/2,443.23
6. Step 6: Final answer
   x = 2,155.24