Finding the Fourth Proportional to 2,111.54, 3,166.10 and 650.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.54 : 3,166.10 = 650.30 : x
2. Step 2: Convert to fraction form
   2,111.54/3,166.10 = 650.30/x
3. Step 3: Cross multiply
   2,111.54x = 3,166.10 × 650.30
4. Step 4: Simplify right side
   2,111.54x = 2,058,911.58
5. Step 5: Solve for x
   x = 2,058,911.58/2,111.54
6. Step 6: Final answer
   x = 975.08