Finding the Fourth Proportional to 2,685.89, 3,706.72 and 1,490.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.89 : 3,706.72 = 1,490.94 : x
2. Step 2: Convert to fraction form
   2,685.89/3,706.72 = 1,490.94/x
3. Step 3: Cross multiply
   2,685.89x = 3,706.72 × 1,490.94
4. Step 4: Simplify right side
   2,685.89x = 5,526,497.12
5. Step 5: Solve for x
   x = 5,526,497.12/2,685.89
6. Step 6: Final answer
   x = 2,057.60