Finding the Fourth Proportional to 2,685.22, 3,705.55 and 1,490.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.22 : 3,705.55 = 1,490.17 : x
2. Step 2: Convert to fraction form
   2,685.22/3,705.55 = 1,490.17/x
3. Step 3: Cross multiply
   2,685.22x = 3,705.55 × 1,490.17
4. Step 4: Simplify right side
   2,685.22x = 5,521,899.44
5. Step 5: Solve for x
   x = 5,521,899.44/2,685.22
6. Step 6: Final answer
   x = 2,056.40