Finding the Fourth Proportional to 2,215.20, 3,057.60 and 1,552.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.20 : 3,057.60 = 1,552.23 : x
2. Step 2: Convert to fraction form
   2,215.20/3,057.60 = 1,552.23/x
3. Step 3: Cross multiply
   2,215.20x = 3,057.60 × 1,552.23
4. Step 4: Simplify right side
   2,215.20x = 4,746,098.45
5. Step 5: Solve for x
   x = 4,746,098.45/2,215.20
6. Step 6: Final answer
   x = 2,142.51