Finding the Fourth Proportional to 2,111.22, 3,166.74 and 650.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.22 : 3,166.74 = 650.31 : x
2. Step 2: Convert to fraction form
   2,111.22/3,166.74 = 650.31/x
3. Step 3: Cross multiply
   2,111.22x = 3,166.74 × 650.31
4. Step 4: Simplify right side
   2,111.22x = 2,059,362.69
5. Step 5: Solve for x
   x = 2,059,362.69/2,111.22
6. Step 6: Final answer
   x = 975.44