Finding the Fourth Proportional to 1,483.52, 2,047.28 and 820.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.52 : 2,047.28 = 820.43 : x
2. Step 2: Convert to fraction form
   1,483.52/2,047.28 = 820.43/x
3. Step 3: Cross multiply
   1,483.52x = 2,047.28 × 820.43
4. Step 4: Simplify right side
   1,483.52x = 1,679,649.93
5. Step 5: Solve for x
   x = 1,679,649.93/1,483.52
6. Step 6: Final answer
   x = 1,132.21