Finding the Fourth Proportional to 1,483.32, 2,046.94 and 820.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.32 : 2,046.94 = 820.15 : x
2. Step 2: Convert to fraction form
   1,483.32/2,046.94 = 820.15/x
3. Step 3: Cross multiply
   1,483.32x = 2,046.94 × 820.15
4. Step 4: Simplify right side
   1,483.32x = 1,678,797.84
5. Step 5: Solve for x
   x = 1,678,797.84/1,483.32
6. Step 6: Final answer
   x = 1,131.78