Finding the Fourth Proportional to 1,479.86, 2,042.22 and 816.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.86 : 2,042.22 = 816.71 : x
2. Step 2: Convert to fraction form
   1,479.86/2,042.22 = 816.71/x
3. Step 3: Cross multiply
   1,479.86x = 2,042.22 × 816.71
4. Step 4: Simplify right side
   1,479.86x = 1,667,891.29
5. Step 5: Solve for x
   x = 1,667,891.29/1,479.86
6. Step 6: Final answer
   x = 1,127.06