Finding the Fourth Proportional to 2,485.26, 3,429.75 and 1,490.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.26 : 3,429.75 = 1,490.34 : x
2. Step 2: Convert to fraction form
   2,485.26/3,429.75 = 1,490.34/x
3. Step 3: Cross multiply
   2,485.26x = 3,429.75 × 1,490.34
4. Step 4: Simplify right side
   2,485.26x = 5,111,493.62
5. Step 5: Solve for x
   x = 5,111,493.62/2,485.26
6. Step 6: Final answer
   x = 2,056.72