Finding the Fourth Proportional to 1,484.26, 2,048.27 and 821.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.26 : 2,048.27 = 821.09 : x
2. Step 2: Convert to fraction form
   1,484.26/2,048.27 = 821.09/x
3. Step 3: Cross multiply
   1,484.26x = 2,048.27 × 821.09
4. Step 4: Simplify right side
   1,484.26x = 1,681,799.67
5. Step 5: Solve for x
   x = 1,681,799.67/1,484.26
6. Step 6: Final answer
   x = 1,133.09