Finding the Fourth Proportional to 2,062.79, 2,846.28 and 1,223.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.79 : 2,846.28 = 1,223.36 : x
2. Step 2: Convert to fraction form
   2,062.79/2,846.28 = 1,223.36/x
3. Step 3: Cross multiply
   2,062.79x = 2,846.28 × 1,223.36
4. Step 4: Simplify right side
   2,062.79x = 3,482,010.87
5. Step 5: Solve for x
   x = 3,482,010.87/2,062.79
6. Step 6: Final answer
   x = 1,688.01