Finding the Fourth Proportional to 1,483.20, 2,046.81 and 820.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.20 : 2,046.81 = 820.08 : x
2. Step 2: Convert to fraction form
   1,483.20/2,046.81 = 820.08/x
3. Step 3: Cross multiply
   1,483.20x = 2,046.81 × 820.08
4. Step 4: Simplify right side
   1,483.20x = 1,678,547.94
5. Step 5: Solve for x
   x = 1,678,547.94/1,483.20
6. Step 6: Final answer
   x = 1,131.71