Finding the Fourth Proportional to 1,445.88, 2,164.71 and 957.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.88 : 2,164.71 = 957.96 : x
2. Step 2: Convert to fraction form
   1,445.88/2,164.71 = 957.96/x
3. Step 3: Cross multiply
   1,445.88x = 2,164.71 × 957.96
4. Step 4: Simplify right side
   1,445.88x = 2,073,705.59
5. Step 5: Solve for x
   x = 2,073,705.59/1,445.88
6. Step 6: Final answer
   x = 1,434.22