Finding the Fourth Proportional to 2,412.21, 3,618.78 and 951.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.21 : 3,618.78 = 951.38 : x
2. Step 2: Convert to fraction form
   2,412.21/3,618.78 = 951.38/x
3. Step 3: Cross multiply
   2,412.21x = 3,618.78 × 951.38
4. Step 4: Simplify right side
   2,412.21x = 3,442,826.83
5. Step 5: Solve for x
   x = 3,442,826.83/2,412.21
6. Step 6: Final answer
   x = 1,427.25