Finding the Fourth Proportional to 1,483.45, 2,047.12 and 820.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.45 : 2,047.12 = 820.33 : x
2. Step 2: Convert to fraction form
   1,483.45/2,047.12 = 820.33/x
3. Step 3: Cross multiply
   1,483.45x = 2,047.12 × 820.33
4. Step 4: Simplify right side
   1,483.45x = 1,679,306.78
5. Step 5: Solve for x
   x = 1,679,306.78/1,483.45
6. Step 6: Final answer
   x = 1,132.03