Finding the Fourth Proportional to 1,412.82, 1,944.81 and 1,223.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.82 : 1,944.81 = 1,223.68 : x
2. Step 2: Convert to fraction form
   1,412.82/1,944.81 = 1,223.68/x
3. Step 3: Cross multiply
   1,412.82x = 1,944.81 × 1,223.68
4. Step 4: Simplify right side
   1,412.82x = 2,379,825.10
5. Step 5: Solve for x
   x = 2,379,825.10/1,412.82
6. Step 6: Final answer
   x = 1,684.45