Finding the Fourth Proportional to 1,016.70, 1,403.01 and 591.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.70 : 1,403.01 = 591.38 : x
2. Step 2: Convert to fraction form
   1,016.70/1,403.01 = 591.38/x
3. Step 3: Cross multiply
   1,016.70x = 1,403.01 × 591.38
4. Step 4: Simplify right side
   1,016.70x = 829,710.30
5. Step 5: Solve for x
   x = 829,710.30/1,016.70
6. Step 6: Final answer
   x = 816.08