Finding the Fourth Proportional to 1,423.53, 1,951.91 and 1,283.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.53 : 1,951.91 = 1,283.09 : x
2. Step 2: Convert to fraction form
   1,423.53/1,951.91 = 1,283.09/x
3. Step 3: Cross multiply
   1,423.53x = 1,951.91 × 1,283.09
4. Step 4: Simplify right side
   1,423.53x = 2,504,460.03
5. Step 5: Solve for x
   x = 2,504,460.03/1,423.53
6. Step 6: Final answer
   x = 1,759.33