Finding the Fourth Proportional to 2,607.34, 3,908.58 and 874.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.34 : 3,908.58 = 874.75 : x
2. Step 2: Convert to fraction form
   2,607.34/3,908.58 = 874.75/x
3. Step 3: Cross multiply
   2,607.34x = 3,908.58 × 874.75
4. Step 4: Simplify right side
   2,607.34x = 3,419,030.36
5. Step 5: Solve for x
   x = 3,419,030.36/2,607.34
6. Step 6: Final answer
   x = 1,311.31