Finding the Fourth Proportional to 2,103.56, 3,154.50 and 1,007.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.56 : 3,154.50 = 1,007.12 : x
2. Step 2: Convert to fraction form
   2,103.56/3,154.50 = 1,007.12/x
3. Step 3: Cross multiply
   2,103.56x = 3,154.50 × 1,007.12
4. Step 4: Simplify right side
   2,103.56x = 3,176,960.04
5. Step 5: Solve for x
   x = 3,176,960.04/2,103.56
6. Step 6: Final answer
   x = 1,510.28