Finding the Fourth Proportional to 1,086.84, 1,630.71 and 599.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.84 : 1,630.71 = 599.85 : x
2. Step 2: Convert to fraction form
   1,086.84/1,630.71 = 599.85/x
3. Step 3: Cross multiply
   1,086.84x = 1,630.71 × 599.85
4. Step 4: Simplify right side
   1,086.84x = 978,181.39
5. Step 5: Solve for x
   x = 978,181.39/1,086.84
6. Step 6: Final answer
   x = 900.02