Finding the Fourth Proportional to 2,885.20, 3,981.89 and 1,626.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.20 : 3,981.89 = 1,626.15 : x
2. Step 2: Convert to fraction form
   2,885.20/3,981.89 = 1,626.15/x
3. Step 3: Cross multiply
   2,885.20x = 3,981.89 × 1,626.15
4. Step 4: Simplify right side
   2,885.20x = 6,475,150.42
5. Step 5: Solve for x
   x = 6,475,150.42/2,885.20
6. Step 6: Final answer
   x = 2,244.26