Finding the Fourth Proportional to 2,399.19, 3,598.99 and 667.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.19 : 3,598.99 = 667.82 : x
2. Step 2: Convert to fraction form
   2,399.19/3,598.99 = 667.82/x
3. Step 3: Cross multiply
   2,399.19x = 3,598.99 × 667.82
4. Step 4: Simplify right side
   2,399.19x = 2,403,459.51
5. Step 5: Solve for x
   x = 2,403,459.51/2,399.19
6. Step 6: Final answer
   x = 1,001.78