Finding the Fourth Proportional to 2,062.19, 2,845.83 and 1,223.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.19 : 2,845.83 = 1,223.31 : x
2. Step 2: Convert to fraction form
   2,062.19/2,845.83 = 1,223.31/x
3. Step 3: Cross multiply
   2,062.19x = 2,845.83 × 1,223.31
4. Step 4: Simplify right side
   2,062.19x = 3,481,332.30
5. Step 5: Solve for x
   x = 3,481,332.30/2,062.19
6. Step 6: Final answer
   x = 1,688.17