Finding the Fourth Proportional to 2,188.88, 3,282.60 and 801.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.88 : 3,282.60 = 801.98 : x
2. Step 2: Convert to fraction form
   2,188.88/3,282.60 = 801.98/x
3. Step 3: Cross multiply
   2,188.88x = 3,282.60 × 801.98
4. Step 4: Simplify right side
   2,188.88x = 2,632,579.55
5. Step 5: Solve for x
   x = 2,632,579.55/2,188.88
6. Step 6: Final answer
   x = 1,202.71