Finding the Fourth Proportional to 1,481.82, 2,224.17 and 712.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,481.82 : 2,224.17 = 712.86 : x
2. Step 2: Convert to fraction form
   1,481.82/2,224.17 = 712.86/x
3. Step 3: Cross multiply
   1,481.82x = 2,224.17 × 712.86
4. Step 4: Simplify right side
   1,481.82x = 1,585,521.83
5. Step 5: Solve for x
   x = 1,585,521.83/1,481.82
6. Step 6: Final answer
   x = 1,069.98