Finding the Fourth Proportional to 2,553.37, 3,523.63 and 1,434.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.37 : 3,523.63 = 1,434.31 : x
2. Step 2: Convert to fraction form
   2,553.37/3,523.63 = 1,434.31/x
3. Step 3: Cross multiply
   2,553.37x = 3,523.63 × 1,434.31
4. Step 4: Simplify right side
   2,553.37x = 5,053,977.75
5. Step 5: Solve for x
   x = 5,053,977.75/2,553.37
6. Step 6: Final answer
   x = 1,979.34