Finding the Fourth Proportional to 2,028.33, 3,042.61 and 989.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.33 : 3,042.61 = 989.22 : x
2. Step 2: Convert to fraction form
   2,028.33/3,042.61 = 989.22/x
3. Step 3: Cross multiply
   2,028.33x = 3,042.61 × 989.22
4. Step 4: Simplify right side
   2,028.33x = 3,009,803.93
5. Step 5: Solve for x
   x = 3,009,803.93/2,028.33
6. Step 6: Final answer
   x = 1,483.88