Finding the Fourth Proportional to 1,346.84, 1,854.42 and 1,223.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.84 : 1,854.42 = 1,223.82 : x
2. Step 2: Convert to fraction form
   1,346.84/1,854.42 = 1,223.82/x
3. Step 3: Cross multiply
   1,346.84x = 1,854.42 × 1,223.82
4. Step 4: Simplify right side
   1,346.84x = 2,269,480.87
5. Step 5: Solve for x
   x = 2,269,480.87/1,346.84
6. Step 6: Final answer
   x = 1,685.04