Finding the Fourth Proportional to 1,484.43, 2,048.43 and 821.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.43 : 2,048.43 = 821.18 : x
2. Step 2: Convert to fraction form
   1,484.43/2,048.43 = 821.18/x
3. Step 3: Cross multiply
   1,484.43x = 2,048.43 × 821.18
4. Step 4: Simplify right side
   1,484.43x = 1,682,122.58
5. Step 5: Solve for x
   x = 1,682,122.58/1,484.43
6. Step 6: Final answer
   x = 1,133.18