Finding the Fourth Proportional to 2,019.40, 3,029.82 and 865.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.40 : 3,029.82 = 865.48 : x
2. Step 2: Convert to fraction form
   2,019.40/3,029.82 = 865.48/x
3. Step 3: Cross multiply
   2,019.40x = 3,029.82 × 865.48
4. Step 4: Simplify right side
   2,019.40x = 2,622,248.61
5. Step 5: Solve for x
   x = 2,622,248.61/2,019.40
6. Step 6: Final answer
   x = 1,298.53