Finding the Fourth Proportional to 2,025.30, 3,035.50 and 928.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.30 : 3,035.50 = 928.15 : x
2. Step 2: Convert to fraction form
   2,025.30/3,035.50 = 928.15/x
3. Step 3: Cross multiply
   2,025.30x = 3,035.50 × 928.15
4. Step 4: Simplify right side
   2,025.30x = 2,817,399.33
5. Step 5: Solve for x
   x = 2,817,399.33/2,025.30
6. Step 6: Final answer
   x = 1,391.10