Finding the Fourth Proportional to 2,111.18, 3,165.85 and 650.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.18 : 3,165.85 = 650.00 : x
2. Step 2: Convert to fraction form
   2,111.18/3,165.85 = 650.00/x
3. Step 3: Cross multiply
   2,111.18x = 3,165.85 × 650.00
4. Step 4: Simplify right side
   2,111.18x = 2,057,811.23
5. Step 5: Solve for x
   x = 2,057,811.23/2,111.18
6. Step 6: Final answer
   x = 974.72