Finding the Fourth Proportional to 2,201.56, 3,300.22 and 814.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,201.56 : 3,300.22 = 814.52 : x
2. Step 2: Convert to fraction form
   2,201.56/3,300.22 = 814.52/x
3. Step 3: Cross multiply
   2,201.56x = 3,300.22 × 814.52
4. Step 4: Simplify right side
   2,201.56x = 2,688,095.19
5. Step 5: Solve for x
   x = 2,688,095.19/2,201.56
6. Step 6: Final answer
   x = 1,221.00