Finding the Fourth Proportional to 1,650.08, 2,276.16 and 986.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,650.08 : 2,276.16 = 986.72 : x
2. Step 2: Convert to fraction form
   1,650.08/2,276.16 = 986.72/x
3. Step 3: Cross multiply
   1,650.08x = 2,276.16 × 986.72
4. Step 4: Simplify right side
   1,650.08x = 2,245,932.60
5. Step 5: Solve for x
   x = 2,245,932.60/1,650.08
6. Step 6: Final answer
   x = 1,361.11