Finding the Fourth Proportional to 2,443.91, 3,374.83 and 1,561.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.91 : 3,374.83 = 1,561.26 : x
2. Step 2: Convert to fraction form
   2,443.91/3,374.83 = 1,561.26/x
3. Step 3: Cross multiply
   2,443.91x = 3,374.83 × 1,561.26
4. Step 4: Simplify right side
   2,443.91x = 5,268,987.09
5. Step 5: Solve for x
   x = 5,268,987.09/2,443.91
6. Step 6: Final answer
   x = 2,155.97