Finding the Fourth Proportional to 2,650.56, 3,976.18 and 801.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.56 : 3,976.18 = 801.86 : x
2. Step 2: Convert to fraction form
   2,650.56/3,976.18 = 801.86/x
3. Step 3: Cross multiply
   2,650.56x = 3,976.18 × 801.86
4. Step 4: Simplify right side
   2,650.56x = 3,188,317.81
5. Step 5: Solve for x
   x = 3,188,317.81/2,650.56
6. Step 6: Final answer
   x = 1,202.89