Finding the Fourth Proportional to 2,311.30, 3,467.50 and 751.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.30 : 3,467.50 = 751.31 : x
2. Step 2: Convert to fraction form
   2,311.30/3,467.50 = 751.31/x
3. Step 3: Cross multiply
   2,311.30x = 3,467.50 × 751.31
4. Step 4: Simplify right side
   2,311.30x = 2,605,167.43
5. Step 5: Solve for x
   x = 2,605,167.43/2,311.30
6. Step 6: Final answer
   x = 1,127.14