Finding the Fourth Proportional to 2,340.52, 3,228.78 and 1,553.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.52 : 3,228.78 = 1,553.56 : x
2. Step 2: Convert to fraction form
   2,340.52/3,228.78 = 1,553.56/x
3. Step 3: Cross multiply
   2,340.52x = 3,228.78 × 1,553.56
4. Step 4: Simplify right side
   2,340.52x = 5,016,103.46
5. Step 5: Solve for x
   x = 5,016,103.46/2,340.52
6. Step 6: Final answer
   x = 2,143.16