Finding the Fourth Proportional to 2,201.86, 3,303.98 and 1,228.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,201.86 : 3,303.98 = 1,228.50 : x
2. Step 2: Convert to fraction form
   2,201.86/3,303.98 = 1,228.50/x
3. Step 3: Cross multiply
   2,201.86x = 3,303.98 × 1,228.50
4. Step 4: Simplify right side
   2,201.86x = 4,058,939.43
5. Step 5: Solve for x
   x = 4,058,939.43/2,201.86
6. Step 6: Final answer
   x = 1,843.41