Finding the Fourth Proportional to 2,308.64, 3,182.72 and 1,561.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.64 : 3,182.72 = 1,561.41 : x
2. Step 2: Convert to fraction form
   2,308.64/3,182.72 = 1,561.41/x
3. Step 3: Cross multiply
   2,308.64x = 3,182.72 × 1,561.41
4. Step 4: Simplify right side
   2,308.64x = 4,969,523.03
5. Step 5: Solve for x
   x = 4,969,523.03/2,308.64
6. Step 6: Final answer
   x = 2,152.58