Finding the Fourth Proportional to 2,338.50, 3,227.18 and 1,290.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.50 : 3,227.18 = 1,290.54 : x
2. Step 2: Convert to fraction form
   2,338.50/3,227.18 = 1,290.54/x
3. Step 3: Cross multiply
   2,338.50x = 3,227.18 × 1,290.54
4. Step 4: Simplify right side
   2,338.50x = 4,164,798.42
5. Step 5: Solve for x
   x = 4,164,798.42/2,338.50
6. Step 6: Final answer
   x = 1,780.97