Finding the Fourth Proportional to 1,484.83, 2,048.83 and 821.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.83 : 2,048.83 = 821.68 : x
2. Step 2: Convert to fraction form
   1,484.83/2,048.83 = 821.68/x
3. Step 3: Cross multiply
   1,484.83x = 2,048.83 × 821.68
4. Step 4: Simplify right side
   1,484.83x = 1,683,475.46
5. Step 5: Solve for x
   x = 1,683,475.46/1,484.83
6. Step 6: Final answer
   x = 1,133.78