Finding the Fourth Proportional to 1,484.73, 2,048.81 and 821.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.73 : 2,048.81 = 821.42 : x
2. Step 2: Convert to fraction form
   1,484.73/2,048.81 = 821.42/x
3. Step 3: Cross multiply
   1,484.73x = 2,048.81 × 821.42
4. Step 4: Simplify right side
   1,484.73x = 1,682,934.53
5. Step 5: Solve for x
   x = 1,682,934.53/1,484.73
6. Step 6: Final answer
   x = 1,133.49