Finding the Fourth Proportional to 2,276.59, 3,142.36 and 1,490.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.59 : 3,142.36 = 1,490.69 : x
2. Step 2: Convert to fraction form
   2,276.59/3,142.36 = 1,490.69/x
3. Step 3: Cross multiply
   2,276.59x = 3,142.36 × 1,490.69
4. Step 4: Simplify right side
   2,276.59x = 4,684,284.63
5. Step 5: Solve for x
   x = 4,684,284.63/2,276.59
6. Step 6: Final answer
   x = 2,057.59