Finding the Fourth Proportional to 1,071.98, 1,479.33 and 599.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.98 : 1,479.33 = 599.91 : x
2. Step 2: Convert to fraction form
   1,071.98/1,479.33 = 599.91/x
3. Step 3: Cross multiply
   1,071.98x = 1,479.33 × 599.91
4. Step 4: Simplify right side
   1,071.98x = 887,464.86
5. Step 5: Solve for x
   x = 887,464.86/1,071.98
6. Step 6: Final answer
   x = 827.88