Finding the Fourth Proportional to 1,010.27, 1,394.17 and 590.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.27 : 1,394.17 = 590.76 : x
2. Step 2: Convert to fraction form
   1,010.27/1,394.17 = 590.76/x
3. Step 3: Cross multiply
   1,010.27x = 1,394.17 × 590.76
4. Step 4: Simplify right side
   1,010.27x = 823,616.66
5. Step 5: Solve for x
   x = 823,616.66/1,010.27
6. Step 6: Final answer
   x = 815.24