Finding the Fourth Proportional to 2,111.92, 3,167.68 and 650.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.92 : 3,167.68 = 650.68 : x
2. Step 2: Convert to fraction form
   2,111.92/3,167.68 = 650.68/x
3. Step 3: Cross multiply
   2,111.92x = 3,167.68 × 650.68
4. Step 4: Simplify right side
   2,111.92x = 2,061,141.81
5. Step 5: Solve for x
   x = 2,061,141.81/2,111.92
6. Step 6: Final answer
   x = 975.96