Finding the Fourth Proportional to 1,483.64, 2,047.32 and 820.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.64 : 2,047.32 = 820.49 : x
2. Step 2: Convert to fraction form
   1,483.64/2,047.32 = 820.49/x
3. Step 3: Cross multiply
   1,483.64x = 2,047.32 × 820.49
4. Step 4: Simplify right side
   1,483.64x = 1,679,795.35
5. Step 5: Solve for x
   x = 1,679,795.35/1,483.64
6. Step 6: Final answer
   x = 1,132.22