Finding the Fourth Proportional to 3,528.72, 4,868.88 and 2,202.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,528.72 : 4,868.88 = 2,202.72 : x
2. Step 2: Convert to fraction form
   3,528.72/4,868.88 = 2,202.72/x
3. Step 3: Cross multiply
   3,528.72x = 4,868.88 × 2,202.72
4. Step 4: Simplify right side
   3,528.72x = 10,724,779.35
5. Step 5: Solve for x
   x = 10,724,779.35/3,528.72
6. Step 6: Final answer
   x = 3,039.28