Finding the Fourth Proportional to 3,581.61, 4,942.18 and 2,089.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.61 : 4,942.18 = 2,089.89 : x
2. Step 2: Convert to fraction form
   3,581.61/4,942.18 = 2,089.89/x
3. Step 3: Cross multiply
   3,581.61x = 4,942.18 × 2,089.89
4. Step 4: Simplify right side
   3,581.61x = 10,328,612.56
5. Step 5: Solve for x
   x = 10,328,612.56/3,581.61
6. Step 6: Final answer
   x = 2,883.79