Finding the Fourth Proportional to 2,607.27, 3,911.31 and 875.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.27 : 3,911.31 = 875.49 : x
2. Step 2: Convert to fraction form
   2,607.27/3,911.31 = 875.49/x
3. Step 3: Cross multiply
   2,607.27x = 3,911.31 × 875.49
4. Step 4: Simplify right side
   2,607.27x = 3,424,312.79
5. Step 5: Solve for x
   x = 3,424,312.79/2,607.27
6. Step 6: Final answer
   x = 1,313.37