Finding the Fourth Proportional to 2,588.54, 3,879.72 and 1,490.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.54 : 3,879.72 = 1,490.63 : x
2. Step 2: Convert to fraction form
   2,588.54/3,879.72 = 1,490.63/x
3. Step 3: Cross multiply
   2,588.54x = 3,879.72 × 1,490.63
4. Step 4: Simplify right side
   2,588.54x = 5,783,207.63
5. Step 5: Solve for x
   x = 5,783,207.63/2,588.54
6. Step 6: Final answer
   x = 2,234.16