Finding the Fourth Proportional to 2,553.24, 3,523.46 and 1,434.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.24 : 3,523.46 = 1,434.20 : x
2. Step 2: Convert to fraction form
   2,553.24/3,523.46 = 1,434.20/x
3. Step 3: Cross multiply
   2,553.24x = 3,523.46 × 1,434.20
4. Step 4: Simplify right side
   2,553.24x = 5,053,321.54
5. Step 5: Solve for x
   x = 5,053,321.54/2,553.24
6. Step 6: Final answer
   x = 1,979.18