Finding the Fourth Proportional to 1,488.97, 2,055.74 and 958.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.97 : 2,055.74 = 958.09 : x
2. Step 2: Convert to fraction form
   1,488.97/2,055.74 = 958.09/x
3. Step 3: Cross multiply
   1,488.97x = 2,055.74 × 958.09
4. Step 4: Simplify right side
   1,488.97x = 1,969,583.94
5. Step 5: Solve for x
   x = 1,969,583.94/1,488.97
6. Step 6: Final answer
   x = 1,322.78