Finding the Fourth Proportional to 1,071.86, 1,479.06 and 599.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.86 : 1,479.06 = 599.63 : x
2. Step 2: Convert to fraction form
   1,071.86/1,479.06 = 599.63/x
3. Step 3: Cross multiply
   1,071.86x = 1,479.06 × 599.63
4. Step 4: Simplify right side
   1,071.86x = 886,881.35
5. Step 5: Solve for x
   x = 886,881.35/1,071.86
6. Step 6: Final answer
   x = 827.43