Finding the Fourth Proportional to 2,338.48, 3,227.04 and 1,290.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.48 : 3,227.04 = 1,290.52 : x
2. Step 2: Convert to fraction form
   2,338.48/3,227.04 = 1,290.52/x
3. Step 3: Cross multiply
   2,338.48x = 3,227.04 × 1,290.52
4. Step 4: Simplify right side
   2,338.48x = 4,164,559.66
5. Step 5: Solve for x
   x = 4,164,559.66/2,338.48
6. Step 6: Final answer
   x = 1,780.88