Finding the Fourth Proportional to 2,606.54, 3,910.72 and 875.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.54 : 3,910.72 = 875.16 : x
2. Step 2: Convert to fraction form
   2,606.54/3,910.72 = 875.16/x
3. Step 3: Cross multiply
   2,606.54x = 3,910.72 × 875.16
4. Step 4: Simplify right side
   2,606.54x = 3,422,503.53
5. Step 5: Solve for x
   x = 3,422,503.53/2,606.54
6. Step 6: Final answer
   x = 1,313.05