Finding the Fourth Proportional to 2,553.42, 3,522.78 and 1,608.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.42 : 3,522.78 = 1,608.96 : x
2. Step 2: Convert to fraction form
   2,553.42/3,522.78 = 1,608.96/x
3. Step 3: Cross multiply
   2,553.42x = 3,522.78 × 1,608.96
4. Step 4: Simplify right side
   2,553.42x = 5,668,012.11
5. Step 5: Solve for x
   x = 5,668,012.11/2,553.42
6. Step 6: Final answer
   x = 2,219.77