Finding the Fourth Proportional to 2,388.79, 3,296.38 and 1,326.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.79 : 3,296.38 = 1,326.49 : x
2. Step 2: Convert to fraction form
   2,388.79/3,296.38 = 1,326.49/x
3. Step 3: Cross multiply
   2,388.79x = 3,296.38 × 1,326.49
4. Step 4: Simplify right side
   2,388.79x = 4,372,623.37
5. Step 5: Solve for x
   x = 4,372,623.37/2,388.79
6. Step 6: Final answer
   x = 1,830.48