Finding the Fourth Proportional to 5,272.85, 7,276.56 and 2,882.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,272.85 : 7,276.56 = 2,882.83 : x
2. Step 2: Convert to fraction form
   5,272.85/7,276.56 = 2,882.83/x
3. Step 3: Cross multiply
   5,272.85x = 7,276.56 × 2,882.83
4. Step 4: Simplify right side
   5,272.85x = 20,977,085.46
5. Step 5: Solve for x
   x = 20,977,085.46/5,272.85
6. Step 6: Final answer
   x = 3,978.32