Finding the Fourth Proportional to 2,111.84, 3,168.84 and 957.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.84 : 3,168.84 = 957.44 : x
2. Step 2: Convert to fraction form
   2,111.84/3,168.84 = 957.44/x
3. Step 3: Cross multiply
   2,111.84x = 3,168.84 × 957.44
4. Step 4: Simplify right side
   2,111.84x = 3,033,974.17
5. Step 5: Solve for x
   x = 3,033,974.17/2,111.84
6. Step 6: Final answer
   x = 1,436.65