Finding the Fourth Proportional to 1,441.43, 2,160.89 and 1,223.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.43 : 2,160.89 = 1,223.47 : x
2. Step 2: Convert to fraction form
   1,441.43/2,160.89 = 1,223.47/x
3. Step 3: Cross multiply
   1,441.43x = 2,160.89 × 1,223.47
4. Step 4: Simplify right side
   1,441.43x = 2,643,767.17
5. Step 5: Solve for x
   x = 2,643,767.17/1,441.43
6. Step 6: Final answer
   x = 1,834.13