Finding the Fourth Proportional to 2,522.69, 3,482.07 and 1,638.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.69 : 3,482.07 = 1,638.62 : x
2. Step 2: Convert to fraction form
   2,522.69/3,482.07 = 1,638.62/x
3. Step 3: Cross multiply
   2,522.69x = 3,482.07 × 1,638.62
4. Step 4: Simplify right side
   2,522.69x = 5,705,789.54
5. Step 5: Solve for x
   x = 5,705,789.54/2,522.69
6. Step 6: Final answer
   x = 2,261.79