Finding the Fourth Proportional to 2,198.82, 3,298.23 and 555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.82 : 3,298.23 = 555.50 : x
2. Step 2: Convert to fraction form
   2,198.82/3,298.23 = 555.50/x
3. Step 3: Cross multiply
   2,198.82x = 3,298.23 × 555.50
4. Step 4: Simplify right side
   2,198.82x = 1,832,147.50
5. Step 5: Solve for x
   x = 1,832,147.50/2,198.82
6. Step 6: Final answer
   x = 833.24