Finding the Fourth Proportional to 2,606.76, 3,910.77 and 875.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.76 : 3,910.77 = 875.34 : x
2. Step 2: Convert to fraction form
   2,606.76/3,910.77 = 875.34/x
3. Step 3: Cross multiply
   2,606.76x = 3,910.77 × 875.34
4. Step 4: Simplify right side
   2,606.76x = 3,423,253.41
5. Step 5: Solve for x
   x = 3,423,253.41/2,606.76
6. Step 6: Final answer
   x = 1,313.22