Finding the Fourth Proportional to 2,191.07, 3,285.50 and 957.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.07 : 3,285.50 = 957.93 : x
2. Step 2: Convert to fraction form
   2,191.07/3,285.50 = 957.93/x
3. Step 3: Cross multiply
   2,191.07x = 3,285.50 × 957.93
4. Step 4: Simplify right side
   2,191.07x = 3,147,274.23
5. Step 5: Solve for x
   x = 3,147,274.23/2,191.07
6. Step 6: Final answer
   x = 1,436.41