Finding the Fourth Proportional to 1,484.01, 2,047.83 and 820.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.01 : 2,047.83 = 820.80 : x
2. Step 2: Convert to fraction form
   1,484.01/2,047.83 = 820.80/x
3. Step 3: Cross multiply
   1,484.01x = 2,047.83 × 820.80
4. Step 4: Simplify right side
   1,484.01x = 1,680,858.86
5. Step 5: Solve for x
   x = 1,680,858.86/1,484.01
6. Step 6: Final answer
   x = 1,132.65