Finding the Fourth Proportional to 3,485.28, 5,228.76 and 2,025.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485.28 : 5,228.76 = 2,025.72 : x
2. Step 2: Convert to fraction form
   3,485.28/5,228.76 = 2,025.72/x
3. Step 3: Cross multiply
   3,485.28x = 5,228.76 × 2,025.72
4. Step 4: Simplify right side
   3,485.28x = 10,592,003.71
5. Step 5: Solve for x
   x = 10,592,003.71/3,485.28
6. Step 6: Final answer
   x = 3,039.07