Finding the Fourth Proportional to 2,108.61, 3,162.56 and 569.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.61 : 3,162.56 = 569.25 : x
2. Step 2: Convert to fraction form
   2,108.61/3,162.56 = 569.25/x
3. Step 3: Cross multiply
   2,108.61x = 3,162.56 × 569.25
4. Step 4: Simplify right side
   2,108.61x = 1,800,284.43
5. Step 5: Solve for x
   x = 1,800,284.43/2,108.61
6. Step 6: Final answer
   x = 853.78