Finding the Fourth Proportional to 2,083.92, 3,127.23 and 989.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.92 : 3,127.23 = 989.52 : x
2. Step 2: Convert to fraction form
   2,083.92/3,127.23 = 989.52/x
3. Step 3: Cross multiply
   2,083.92x = 3,127.23 × 989.52
4. Step 4: Simplify right side
   2,083.92x = 3,094,456.63
5. Step 5: Solve for x
   x = 3,094,456.63/2,083.92
6. Step 6: Final answer
   x = 1,484.92