Finding the Fourth Proportional to 2,063.58, 2,847.42 and 1,318.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.58 : 2,847.42 = 1,318.20 : x
2. Step 2: Convert to fraction form
   2,063.58/2,847.42 = 1,318.20/x
3. Step 3: Cross multiply
   2,063.58x = 2,847.42 × 1,318.20
4. Step 4: Simplify right side
   2,063.58x = 3,753,469.04
5. Step 5: Solve for x
   x = 3,753,469.04/2,063.58
6. Step 6: Final answer
   x = 1,818.91