Finding the Fourth Proportional to 2,028.50, 2,799.33 and 1,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.50 : 2,799.33 = 1,200.50 : x
2. Step 2: Convert to fraction form
   2,028.50/2,799.33 = 1,200.50/x
3. Step 3: Cross multiply
   2,028.50x = 2,799.33 × 1,200.50
4. Step 4: Simplify right side
   2,028.50x = 3,360,595.67
5. Step 5: Solve for x
   x = 3,360,595.67/2,028.50
6. Step 6: Final answer
   x = 1,656.69