Finding the Fourth Proportional to 2,131.20, 3,192.74 and 1,251.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.20 : 3,192.74 = 1,251.54 : x
2. Step 2: Convert to fraction form
   2,131.20/3,192.74 = 1,251.54/x
3. Step 3: Cross multiply
   2,131.20x = 3,192.74 × 1,251.54
4. Step 4: Simplify right side
   2,131.20x = 3,995,841.82
5. Step 5: Solve for x
   x = 3,995,841.82/2,131.20
6. Step 6: Final answer
   x = 1,874.93