Finding the Fourth Proportional to 1,484.78, 2,049.00 and 821.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.78 : 2,049.00 = 821.59 : x
2. Step 2: Convert to fraction form
   1,484.78/2,049.00 = 821.59/x
3. Step 3: Cross multiply
   1,484.78x = 2,049.00 × 821.59
4. Step 4: Simplify right side
   1,484.78x = 1,683,441.23
5. Step 5: Solve for x
   x = 1,683,441.23/1,484.78
6. Step 6: Final answer
   x = 1,133.80