Finding the Fourth Proportional to 2,007.44, 3,015.79 and 1,423.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.44 : 3,015.79 = 1,423.89 : x
2. Step 2: Convert to fraction form
   2,007.44/3,015.79 = 1,423.89/x
3. Step 3: Cross multiply
   2,007.44x = 3,015.79 × 1,423.89
4. Step 4: Simplify right side
   2,007.44x = 4,294,153.22
5. Step 5: Solve for x
   x = 4,294,153.22/2,007.44
6. Step 6: Final answer
   x = 2,139.12