Finding the Fourth Proportional to 2,380.36, 3,289.41 and 1,789.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.36 : 3,289.41 = 1,789.87 : x
2. Step 2: Convert to fraction form
   2,380.36/3,289.41 = 1,789.87/x
3. Step 3: Cross multiply
   2,380.36x = 3,289.41 × 1,789.87
4. Step 4: Simplify right side
   2,380.36x = 5,887,590.88
5. Step 5: Solve for x
   x = 5,887,590.88/2,380.36
6. Step 6: Final answer
   x = 2,473.41