Finding the Fourth Proportional to 2,081.18, 2,868.08 and 1,490.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.18 : 2,868.08 = 1,490.69 : x
2. Step 2: Convert to fraction form
   2,081.18/2,868.08 = 1,490.69/x
3. Step 3: Cross multiply
   2,081.18x = 2,868.08 × 1,490.69
4. Step 4: Simplify right side
   2,081.18x = 4,275,414.45
5. Step 5: Solve for x
   x = 4,275,414.45/2,081.18
6. Step 6: Final answer
   x = 2,054.32