Finding the Fourth Proportional to 2,553.05, 3,522.57 and 1,434.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.05 : 3,522.57 = 1,434.02 : x
2. Step 2: Convert to fraction form
   2,553.05/3,522.57 = 1,434.02/x
3. Step 3: Cross multiply
   2,553.05x = 3,522.57 × 1,434.02
4. Step 4: Simplify right side
   2,553.05x = 5,051,435.83
5. Step 5: Solve for x
   x = 5,051,435.83/2,553.05
6. Step 6: Final answer
   x = 1,978.59