Finding the Fourth Proportional to 1,011.82, 1,517.59 and 395.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011.82 : 1,517.59 = 395.96 : x
2. Step 2: Convert to fraction form
   1,011.82/1,517.59 = 395.96/x
3. Step 3: Cross multiply
   1,011.82x = 1,517.59 × 395.96
4. Step 4: Simplify right side
   1,011.82x = 600,901.32
5. Step 5: Solve for x
   x = 600,901.32/1,011.82
6. Step 6: Final answer
   x = 593.88