Finding the Fourth Proportional to 2,606.75, 3,598.47 and 1,663.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.75 : 3,598.47 = 1,663.78 : x
2. Step 2: Convert to fraction form
   2,606.75/3,598.47 = 1,663.78/x
3. Step 3: Cross multiply
   2,606.75x = 3,598.47 × 1,663.78
4. Step 4: Simplify right side
   2,606.75x = 5,987,062.42
5. Step 5: Solve for x
   x = 5,987,062.42/2,606.75
6. Step 6: Final answer
   x = 2,296.75