Finding the Fourth Proportional to 1,446.21, 1,995.59 and 816.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.21 : 1,995.59 = 816.82 : x
2. Step 2: Convert to fraction form
   1,446.21/1,995.59 = 816.82/x
3. Step 3: Cross multiply
   1,446.21x = 1,995.59 × 816.82
4. Step 4: Simplify right side
   1,446.21x = 1,630,034.88
5. Step 5: Solve for x
   x = 1,630,034.88/1,446.21
6. Step 6: Final answer
   x = 1,127.11