Finding the Fourth Proportional to 3,530.10, 4,869.01 and 2,185.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530.10 : 4,869.01 = 2,185.28 : x
2. Step 2: Convert to fraction form
   3,530.10/4,869.01 = 2,185.28/x
3. Step 3: Cross multiply
   3,530.10x = 4,869.01 × 2,185.28
4. Step 4: Simplify right side
   3,530.10x = 10,640,146.82
5. Step 5: Solve for x
   x = 10,640,146.82/3,530.10
6. Step 6: Final answer
   x = 3,014.12