Finding the Fourth Proportional to 5,120.43, 7,066.25 and 2,882.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,120.43 : 7,066.25 = 2,882.30 : x
2. Step 2: Convert to fraction form
   5,120.43/7,066.25 = 2,882.30/x
3. Step 3: Cross multiply
   5,120.43x = 7,066.25 × 2,882.30
4. Step 4: Simplify right side
   5,120.43x = 20,367,002.63
5. Step 5: Solve for x
   x = 20,367,002.63/5,120.43
6. Step 6: Final answer
   x = 3,977.60