Finding the Fourth Proportional to 1,434.09, 2,148.39 and 969.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.09 : 2,148.39 = 969.59 : x
2. Step 2: Convert to fraction form
   1,434.09/2,148.39 = 969.59/x
3. Step 3: Cross multiply
   1,434.09x = 2,148.39 × 969.59
4. Step 4: Simplify right side
   1,434.09x = 2,083,046.72
5. Step 5: Solve for x
   x = 2,083,046.72/1,434.09
6. Step 6: Final answer
   x = 1,452.52