Finding the Fourth Proportional to 2,076.50, 3,112.83 and 1,089.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.50 : 3,112.83 = 1,089.11 : x
2. Step 2: Convert to fraction form
   2,076.50/3,112.83 = 1,089.11/x
3. Step 3: Cross multiply
   2,076.50x = 3,112.83 × 1,089.11
4. Step 4: Simplify right side
   2,076.50x = 3,390,222.06
5. Step 5: Solve for x
   x = 3,390,222.06/2,076.50
6. Step 6: Final answer
   x = 1,632.66