Finding the Fourth Proportional to 2,109.56, 3,162.12 and 875.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.56 : 3,162.12 = 875.27 : x
2. Step 2: Convert to fraction form
   2,109.56/3,162.12 = 875.27/x
3. Step 3: Cross multiply
   2,109.56x = 3,162.12 × 875.27
4. Step 4: Simplify right side
   2,109.56x = 2,767,708.77
5. Step 5: Solve for x
   x = 2,767,708.77/2,109.56
6. Step 6: Final answer
   x = 1,311.98