Finding the Fourth Proportional to 2,029.33, 3,042.40 and 858.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,029.33 : 3,042.40 = 858.37 : x
2. Step 2: Convert to fraction form
   2,029.33/3,042.40 = 858.37/x
3. Step 3: Cross multiply
   2,029.33x = 3,042.40 × 858.37
4. Step 4: Simplify right side
   2,029.33x = 2,611,500.60
5. Step 5: Solve for x
   x = 2,611,500.60/2,029.33
6. Step 6: Final answer
   x = 1,286.88