Finding the Fourth Proportional to 1,481.52, 2,223.35 and 865.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,481.52 : 2,223.35 = 865.42 : x
2. Step 2: Convert to fraction form
   1,481.52/2,223.35 = 865.42/x
3. Step 3: Cross multiply
   1,481.52x = 2,223.35 × 865.42
4. Step 4: Simplify right side
   1,481.52x = 1,924,124.92
5. Step 5: Solve for x
   x = 1,924,124.92/1,481.52
6. Step 6: Final answer
   x = 1,298.75