Finding the Fourth Proportional to 1,071.43, 1,478.60 and 599.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.43 : 1,478.60 = 599.30 : x
2. Step 2: Convert to fraction form
   1,071.43/1,478.60 = 599.30/x
3. Step 3: Cross multiply
   1,071.43x = 1,478.60 × 599.30
4. Step 4: Simplify right side
   1,071.43x = 886,129.58
5. Step 5: Solve for x
   x = 886,129.58/1,071.43
6. Step 6: Final answer
   x = 827.05