Finding the Fourth Proportional to 1,083.27, 1,493.06 and 821.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.27 : 1,493.06 = 821.37 : x
2. Step 2: Convert to fraction form
   1,083.27/1,493.06 = 821.37/x
3. Step 3: Cross multiply
   1,083.27x = 1,493.06 × 821.37
4. Step 4: Simplify right side
   1,083.27x = 1,226,350.59
5. Step 5: Solve for x
   x = 1,226,350.59/1,083.27
6. Step 6: Final answer
   x = 1,132.08