Finding the Fourth Proportional to 2,685.32, 3,705.20 and 1,490.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.32 : 3,705.20 = 1,490.25 : x
2. Step 2: Convert to fraction form
   2,685.32/3,705.20 = 1,490.25/x
3. Step 3: Cross multiply
   2,685.32x = 3,705.20 × 1,490.25
4. Step 4: Simplify right side
   2,685.32x = 5,521,666.85
5. Step 5: Solve for x
   x = 5,521,666.85/2,685.32
6. Step 6: Final answer
   x = 2,056.25