Finding the Fourth Proportional to 1,483.40, 2,047.03 and 820.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.40 : 2,047.03 = 820.24 : x
2. Step 2: Convert to fraction form
   1,483.40/2,047.03 = 820.24/x
3. Step 3: Cross multiply
   1,483.40x = 2,047.03 × 820.24
4. Step 4: Simplify right side
   1,483.40x = 1,679,055.89
5. Step 5: Solve for x
   x = 1,679,055.89/1,483.40
6. Step 6: Final answer
   x = 1,131.90