Finding the Fourth Proportional to 2,106.96, 2,907.47 and 1,162.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.96 : 2,907.47 = 1,162.57 : x
2. Step 2: Convert to fraction form
   2,106.96/2,907.47 = 1,162.57/x
3. Step 3: Cross multiply
   2,106.96x = 2,907.47 × 1,162.57
4. Step 4: Simplify right side
   2,106.96x = 3,380,133.04
5. Step 5: Solve for x
   x = 3,380,133.04/2,106.96
6. Step 6: Final answer
   x = 1,604.27