Finding the Fourth Proportional to 2,609.60, 3,598.33 and 1,663.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.60 : 3,598.33 = 1,663.88 : x
2. Step 2: Convert to fraction form
   2,609.60/3,598.33 = 1,663.88/x
3. Step 3: Cross multiply
   2,609.60x = 3,598.33 × 1,663.88
4. Step 4: Simplify right side
   2,609.60x = 5,987,189.32
5. Step 5: Solve for x
   x = 5,987,189.32/2,609.60
6. Step 6: Final answer
   x = 2,294.29