Finding the Fourth Proportional to 2,105.52, 3,158.98 and 875.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.52 : 3,158.98 = 875.32 : x
2. Step 2: Convert to fraction form
   2,105.52/3,158.98 = 875.32/x
3. Step 3: Cross multiply
   2,105.52x = 3,158.98 × 875.32
4. Step 4: Simplify right side
   2,105.52x = 2,765,118.37
5. Step 5: Solve for x
   x = 2,765,118.37/2,105.52
6. Step 6: Final answer
   x = 1,313.27