Finding the Fourth Proportional to 1,658.27, 2,289.39 and 1,490.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.27 : 2,289.39 = 1,490.15 : x
2. Step 2: Convert to fraction form
   1,658.27/2,289.39 = 1,490.15/x
3. Step 3: Cross multiply
   1,658.27x = 2,289.39 × 1,490.15
4. Step 4: Simplify right side
   1,658.27x = 3,411,534.51
5. Step 5: Solve for x
   x = 3,411,534.51/1,658.27
6. Step 6: Final answer
   x = 2,057.29