Finding the Fourth Proportional to 2,338.41, 3,227.00 and 1,290.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.41 : 3,227.00 = 1,290.47 : x
2. Step 2: Convert to fraction form
   2,338.41/3,227.00 = 1,290.47/x
3. Step 3: Cross multiply
   2,338.41x = 3,227.00 × 1,290.47
4. Step 4: Simplify right side
   2,338.41x = 4,164,348.30
5. Step 5: Solve for x
   x = 4,164,348.30/2,338.41
6. Step 6: Final answer
   x = 1,780.84