Finding the Fourth Proportional to 2,062.76, 2,846.06 and 1,223.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.76 : 2,846.06 = 1,223.64 : x
2. Step 2: Convert to fraction form
   2,062.76/2,846.06 = 1,223.64/x
3. Step 3: Cross multiply
   2,062.76x = 2,846.06 × 1,223.64
4. Step 4: Simplify right side
   2,062.76x = 3,482,551.33
5. Step 5: Solve for x
   x = 3,482,551.33/2,062.76
6. Step 6: Final answer
   x = 1,688.30