Finding the Fourth Proportional to 2,191.50, 3,284.60 and 957.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.50 : 3,284.60 = 957.46 : x
2. Step 2: Convert to fraction form
   2,191.50/3,284.60 = 957.46/x
3. Step 3: Cross multiply
   2,191.50x = 3,284.60 × 957.46
4. Step 4: Simplify right side
   2,191.50x = 3,144,873.12
5. Step 5: Solve for x
   x = 3,144,873.12/2,191.50
6. Step 6: Final answer
   x = 1,435.03