Finding the Fourth Proportional to 2,200.12, 3,301.21 and 1,028.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.12 : 3,301.21 = 1,028.69 : x
2. Step 2: Convert to fraction form
   2,200.12/3,301.21 = 1,028.69/x
3. Step 3: Cross multiply
   2,200.12x = 3,301.21 × 1,028.69
4. Step 4: Simplify right side
   2,200.12x = 3,395,921.71
5. Step 5: Solve for x
   x = 3,395,921.71/2,200.12
6. Step 6: Final answer
   x = 1,543.52