Finding the Fourth Proportional to 1,483.92, 2,047.82 and 820.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.92 : 2,047.82 = 820.79 : x
2. Step 2: Convert to fraction form
   1,483.92/2,047.82 = 820.79/x
3. Step 3: Cross multiply
   1,483.92x = 2,047.82 × 820.79
4. Step 4: Simplify right side
   1,483.92x = 1,680,837.35
5. Step 5: Solve for x
   x = 1,680,837.35/1,483.92
6. Step 6: Final answer
   x = 1,132.70