Finding the Fourth Proportional to 2,028.69, 2,799.89 and 1,903.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.69 : 2,799.89 = 1,903.61 : x
2. Step 2: Convert to fraction form
   2,028.69/2,799.89 = 1,903.61/x
3. Step 3: Cross multiply
   2,028.69x = 2,799.89 × 1,903.61
4. Step 4: Simplify right side
   2,028.69x = 5,329,875.09
5. Step 5: Solve for x
   x = 5,329,875.09/2,028.69
6. Step 6: Final answer
   x = 2,627.25