Finding the Fourth Proportional to 1,317.83, 1,976.78 and 1,010.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.83 : 1,976.78 = 1,010.24 : x
2. Step 2: Convert to fraction form
   1,317.83/1,976.78 = 1,010.24/x
3. Step 3: Cross multiply
   1,317.83x = 1,976.78 × 1,010.24
4. Step 4: Simplify right side
   1,317.83x = 1,997,022.23
5. Step 5: Solve for x
   x = 1,997,022.23/1,317.83
6. Step 6: Final answer
   x = 1,515.39