Finding the Fourth Proportional to 2,553.12, 3,522.89 and 1,434.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.12 : 3,522.89 = 1,434.00 : x
2. Step 2: Convert to fraction form
   2,553.12/3,522.89 = 1,434.00/x
3. Step 3: Cross multiply
   2,553.12x = 3,522.89 × 1,434.00
4. Step 4: Simplify right side
   2,553.12x = 5,051,841.06
5. Step 5: Solve for x
   x = 5,051,841.06/2,553.12
6. Step 6: Final answer
   x = 1,978.69