Finding the Fourth Proportional to 2,035.61, 3,053.82 and 865.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,035.61 : 3,053.82 = 865.61 : x
2. Step 2: Convert to fraction form
   2,035.61/3,053.82 = 865.61/x
3. Step 3: Cross multiply
   2,035.61x = 3,053.82 × 865.61
4. Step 4: Simplify right side
   2,035.61x = 2,643,401.86
5. Step 5: Solve for x
   x = 2,643,401.86/2,035.61
6. Step 6: Final answer
   x = 1,298.58