Finding the Fourth Proportional to 3,109.56, 4,664.52 and 801

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.56 : 4,664.52 = 801 : x
2. Step 2: Convert to fraction form
   3,109.56/4,664.52 = 801/x
3. Step 3: Cross multiply
   3,109.56x = 4,664.52 × 801
4. Step 4: Simplify right side
   3,109.56x = 3,736,280.52
5. Step 5: Solve for x
   x = 3,736,280.52/3,109.56
6. Step 6: Final answer
   x = 1,201.55