Finding the Fourth Proportional to 2,111.34, 3,167.07 and 957.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.34 : 3,167.07 = 957.06 : x
2. Step 2: Convert to fraction form
   2,111.34/3,167.07 = 957.06/x
3. Step 3: Cross multiply
   2,111.34x = 3,167.07 × 957.06
4. Step 4: Simplify right side
   2,111.34x = 3,031,076.01
5. Step 5: Solve for x
   x = 3,031,076.01/2,111.34
6. Step 6: Final answer
   x = 1,435.62