Finding the Fourth Proportional to 2,043.82, 3,063.58 and 858.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.82 : 3,063.58 = 858.53 : x
2. Step 2: Convert to fraction form
   2,043.82/3,063.58 = 858.53/x
3. Step 3: Cross multiply
   2,043.82x = 3,063.58 × 858.53
4. Step 4: Simplify right side
   2,043.82x = 2,630,175.34
5. Step 5: Solve for x
   x = 2,630,175.34/2,043.82
6. Step 6: Final answer
   x = 1,286.89