Finding the Fourth Proportional to 2,553.47, 3,523.74 and 1,434.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.47 : 3,523.74 = 1,434.41 : x
2. Step 2: Convert to fraction form
   2,553.47/3,523.74 = 1,434.41/x
3. Step 3: Cross multiply
   2,553.47x = 3,523.74 × 1,434.41
4. Step 4: Simplify right side
   2,553.47x = 5,054,487.89
5. Step 5: Solve for x
   x = 5,054,487.89/2,553.47
6. Step 6: Final answer
   x = 1,979.46