Finding the Fourth Proportional to 3,870.28, 5,807.58 and 2,723.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.28 : 5,807.58 = 2,723.32 : x
2. Step 2: Convert to fraction form
   3,870.28/5,807.58 = 2,723.32/x
3. Step 3: Cross multiply
   3,870.28x = 5,807.58 × 2,723.32
4. Step 4: Simplify right side
   3,870.28x = 15,815,898.77
5. Step 5: Solve for x
   x = 15,815,898.77/3,870.28
6. Step 6: Final answer
   x = 4,086.50