Finding the Fourth Proportional to 1,479.89, 2,042.28 and 816.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.89 : 2,042.28 = 816.82 : x
2. Step 2: Convert to fraction form
   1,479.89/2,042.28 = 816.82/x
3. Step 3: Cross multiply
   1,479.89x = 2,042.28 × 816.82
4. Step 4: Simplify right side
   1,479.89x = 1,668,170.04
5. Step 5: Solve for x
   x = 1,668,170.04/1,479.89
6. Step 6: Final answer
   x = 1,127.22