Finding the Fourth Proportional to 2,609.69, 3,600.66 and 1,490.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.69 : 3,600.66 = 1,490.40 : x
2. Step 2: Convert to fraction form
   2,609.69/3,600.66 = 1,490.40/x
3. Step 3: Cross multiply
   2,609.69x = 3,600.66 × 1,490.40
4. Step 4: Simplify right side
   2,609.69x = 5,366,420.87
5. Step 5: Solve for x
   x = 5,366,420.87/2,609.69
6. Step 6: Final answer
   x = 2,056.35