Finding the Fourth Proportional to 2,030.89, 3,046.27 and 860.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.89 : 3,046.27 = 860.58 : x
2. Step 2: Convert to fraction form
   2,030.89/3,046.27 = 860.58/x
3. Step 3: Cross multiply
   2,030.89x = 3,046.27 × 860.58
4. Step 4: Simplify right side
   2,030.89x = 2,621,559.04
5. Step 5: Solve for x
   x = 2,621,559.04/2,030.89
6. Step 6: Final answer
   x = 1,290.84