Finding the Fourth Proportional to 1,112.83, 1,668.73 and 650.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.83 : 1,668.73 = 650.75 : x
2. Step 2: Convert to fraction form
   1,112.83/1,668.73 = 650.75/x
3. Step 3: Cross multiply
   1,112.83x = 1,668.73 × 650.75
4. Step 4: Simplify right side
   1,112.83x = 1,085,927.37
5. Step 5: Solve for x
   x = 1,085,927.37/1,112.83
6. Step 6: Final answer
   x = 975.82