Finding the Fourth Proportional to 2,485.37, 3,429.68 and 1,490.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.37 : 3,429.68 = 1,490.15 : x
2. Step 2: Convert to fraction form
   2,485.37/3,429.68 = 1,490.15/x
3. Step 3: Cross multiply
   2,485.37x = 3,429.68 × 1,490.15
4. Step 4: Simplify right side
   2,485.37x = 5,110,738.78
5. Step 5: Solve for x
   x = 5,110,738.78/2,485.37
6. Step 6: Final answer
   x = 2,056.33