Finding the Fourth Proportional to 1,490.37, 2,057.09 and 959.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.37 : 2,057.09 = 959.61 : x
2. Step 2: Convert to fraction form
   1,490.37/2,057.09 = 959.61/x
3. Step 3: Cross multiply
   1,490.37x = 2,057.09 × 959.61
4. Step 4: Simplify right side
   1,490.37x = 1,973,999.34
5. Step 5: Solve for x
   x = 1,973,999.34/1,490.37
6. Step 6: Final answer
   x = 1,324.50