Finding the Fourth Proportional to 2,553.09, 3,523.16 and 1,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.09 : 3,523.16 = 1,418.72 : x
2. Step 2: Convert to fraction form
   2,553.09/3,523.16 = 1,418.72/x
3. Step 3: Cross multiply
   2,553.09x = 3,523.16 × 1,418.72
4. Step 4: Simplify right side
   2,553.09x = 4,998,352.85
5. Step 5: Solve for x
   x = 4,998,352.85/2,553.09
6. Step 6: Final answer
   x = 1,957.77