Finding the Fourth Proportional to 2,606.67, 3,910.55 and 875.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.67 : 3,910.55 = 875.25 : x
2. Step 2: Convert to fraction form
   2,606.67/3,910.55 = 875.25/x
3. Step 3: Cross multiply
   2,606.67x = 3,910.55 × 875.25
4. Step 4: Simplify right side
   2,606.67x = 3,422,704.51
5. Step 5: Solve for x
   x = 3,422,704.51/2,606.67
6. Step 6: Final answer
   x = 1,313.06