Finding the Fourth Proportional to 1,483.92, 2,047.89 and 820.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.92 : 2,047.89 = 820.77 : x
2. Step 2: Convert to fraction form
   1,483.92/2,047.89 = 820.77/x
3. Step 3: Cross multiply
   1,483.92x = 2,047.89 × 820.77
4. Step 4: Simplify right side
   1,483.92x = 1,680,846.68
5. Step 5: Solve for x
   x = 1,680,846.68/1,483.92
6. Step 6: Final answer
   x = 1,132.71