Finding the Fourth Proportional to 5,456.69, 8,184.85 and 1,561.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,456.69 : 8,184.85 = 1,561.09 : x
2. Step 2: Convert to fraction form
   5,456.69/8,184.85 = 1,561.09/x
3. Step 3: Cross multiply
   5,456.69x = 8,184.85 × 1,561.09
4. Step 4: Simplify right side
   5,456.69x = 12,777,287.49
5. Step 5: Solve for x
   x = 12,777,287.49/5,456.69
6. Step 6: Final answer
   x = 2,341.58