Finding the Fourth Proportional to 2,311.35, 3,467.00 and 667.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.35 : 3,467.00 = 667.91 : x
2. Step 2: Convert to fraction form
   2,311.35/3,467.00 = 667.91/x
3. Step 3: Cross multiply
   2,311.35x = 3,467.00 × 667.91
4. Step 4: Simplify right side
   2,311.35x = 2,315,623.30
5. Step 5: Solve for x
   x = 2,315,623.30/2,311.35
6. Step 6: Final answer
   x = 1,001.85