Finding the Fourth Proportional to 2,128.43, 3,192.39 and 568.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.43 : 3,192.39 = 568.55 : x
2. Step 2: Convert to fraction form
   2,128.43/3,192.39 = 568.55/x
3. Step 3: Cross multiply
   2,128.43x = 3,192.39 × 568.55
4. Step 4: Simplify right side
   2,128.43x = 1,815,041.32
5. Step 5: Solve for x
   x = 1,815,041.32/2,128.43
6. Step 6: Final answer
   x = 852.76