Finding the Fourth Proportional to 4,826.34, 6,659.22 and 3,057.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,826.34 : 6,659.22 = 3,057.30 : x
2. Step 2: Convert to fraction form
   4,826.34/6,659.22 = 3,057.30/x
3. Step 3: Cross multiply
   4,826.34x = 6,659.22 × 3,057.30
4. Step 4: Simplify right side
   4,826.34x = 20,359,233.31
5. Step 5: Solve for x
   x = 20,359,233.31/4,826.34
6. Step 6: Final answer
   x = 4,218.36