Finding the Fourth Proportional to 2,685.30, 3,705.52 and 1,490.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.30 : 3,705.52 = 1,490.34 : x
2. Step 2: Convert to fraction form
   2,685.30/3,705.52 = 1,490.34/x
3. Step 3: Cross multiply
   2,685.30x = 3,705.52 × 1,490.34
4. Step 4: Simplify right side
   2,685.30x = 5,522,484.68
5. Step 5: Solve for x
   x = 5,522,484.68/2,685.30
6. Step 6: Final answer
   x = 2,056.56