Finding the Fourth Proportional to 2,031.75, 3,047.56 and 1,107.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.75 : 3,047.56 = 1,107.07 : x
2. Step 2: Convert to fraction form
   2,031.75/3,047.56 = 1,107.07/x
3. Step 3: Cross multiply
   2,031.75x = 3,047.56 × 1,107.07
4. Step 4: Simplify right side
   2,031.75x = 3,373,851.86
5. Step 5: Solve for x
   x = 3,373,851.86/2,031.75
6. Step 6: Final answer
   x = 1,660.56