Finding the Fourth Proportional to 1,483.64, 2,047.46 and 820.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.64 : 2,047.46 = 820.54 : x
2. Step 2: Convert to fraction form
   1,483.64/2,047.46 = 820.54/x
3. Step 3: Cross multiply
   1,483.64x = 2,047.46 × 820.54
4. Step 4: Simplify right side
   1,483.64x = 1,680,022.83
5. Step 5: Solve for x
   x = 1,680,022.83/1,483.64
6. Step 6: Final answer
   x = 1,132.37