Finding the Fourth Proportional to 2,338.89, 3,227.75 and 1,291.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.89 : 3,227.75 = 1,291.05 : x
2. Step 2: Convert to fraction form
   2,338.89/3,227.75 = 1,291.05/x
3. Step 3: Cross multiply
   2,338.89x = 3,227.75 × 1,291.05
4. Step 4: Simplify right side
   2,338.89x = 4,167,180.18
5. Step 5: Solve for x
   x = 4,167,180.18/2,338.89
6. Step 6: Final answer
   x = 1,781.69