Finding the Fourth Proportional to 1,490.71, 2,057.33 and 1,241.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.71 : 2,057.33 = 1,241.59 : x
2. Step 2: Convert to fraction form
   1,490.71/2,057.33 = 1,241.59/x
3. Step 3: Cross multiply
   1,490.71x = 2,057.33 × 1,241.59
4. Step 4: Simplify right side
   1,490.71x = 2,554,360.35
5. Step 5: Solve for x
   x = 2,554,360.35/1,490.71
6. Step 6: Final answer
   x = 1,713.52