Finding the Fourth Proportional to 2,019.10, 3,025.95 and 863.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.10 : 3,025.95 = 863.50 : x
2. Step 2: Convert to fraction form
   2,019.10/3,025.95 = 863.50/x
3. Step 3: Cross multiply
   2,019.10x = 3,025.95 × 863.50
4. Step 4: Simplify right side
   2,019.10x = 2,612,907.83
5. Step 5: Solve for x
   x = 2,612,907.83/2,019.10
6. Step 6: Final answer
   x = 1,294.10