Finding the Fourth Proportional to 1,483.44, 2,223.94 and 865.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.44 : 2,223.94 = 865.62 : x
2. Step 2: Convert to fraction form
   1,483.44/2,223.94 = 865.62/x
3. Step 3: Cross multiply
   1,483.44x = 2,223.94 × 865.62
4. Step 4: Simplify right side
   1,483.44x = 1,925,086.94
5. Step 5: Solve for x
   x = 1,925,086.94/1,483.44
6. Step 6: Final answer
   x = 1,297.72