Finding the Fourth Proportional to 2,685.21, 3,705.41 and 1,490.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.21 : 3,705.41 = 1,490.26 : x
2. Step 2: Convert to fraction form
   2,685.21/3,705.41 = 1,490.26/x
3. Step 3: Cross multiply
   2,685.21x = 3,705.41 × 1,490.26
4. Step 4: Simplify right side
   2,685.21x = 5,522,016.86
5. Step 5: Solve for x
   x = 5,522,016.86/2,685.21
6. Step 6: Final answer
   x = 2,056.45