Finding the Fourth Proportional to 2,062.32, 2,846.16 and 1,223.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.32 : 2,846.16 = 1,223.28 : x
2. Step 2: Convert to fraction form
   2,062.32/2,846.16 = 1,223.28/x
3. Step 3: Cross multiply
   2,062.32x = 2,846.16 × 1,223.28
4. Step 4: Simplify right side
   2,062.32x = 3,481,650.60
5. Step 5: Solve for x
   x = 3,481,650.60/2,062.32
6. Step 6: Final answer
   x = 1,688.22