Finding the Fourth Proportional to 2,359.78, 3,256.41 and 1,662.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.78 : 3,256.41 = 1,662.10 : x
2. Step 2: Convert to fraction form
   2,359.78/3,256.41 = 1,662.10/x
3. Step 3: Cross multiply
   2,359.78x = 3,256.41 × 1,662.10
4. Step 4: Simplify right side
   2,359.78x = 5,412,479.06
5. Step 5: Solve for x
   x = 5,412,479.06/2,359.78
6. Step 6: Final answer
   x = 2,293.64