Finding the Fourth Proportional to 2,388.78, 3,579.48 and 1,607.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.78 : 3,579.48 = 1,607.10 : x
2. Step 2: Convert to fraction form
   2,388.78/3,579.48 = 1,607.10/x
3. Step 3: Cross multiply
   2,388.78x = 3,579.48 × 1,607.10
4. Step 4: Simplify right side
   2,388.78x = 5,752,582.31
5. Step 5: Solve for x
   x = 5,752,582.31/2,388.78
6. Step 6: Final answer
   x = 2,408.17