Finding the Fourth Proportional to 1,483.29, 2,046.75 and 820.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.29 : 2,046.75 = 820.15 : x
2. Step 2: Convert to fraction form
   1,483.29/2,046.75 = 820.15/x
3. Step 3: Cross multiply
   1,483.29x = 2,046.75 × 820.15
4. Step 4: Simplify right side
   1,483.29x = 1,678,642.01
5. Step 5: Solve for x
   x = 1,678,642.01/1,483.29
6. Step 6: Final answer
   x = 1,131.70