Finding the Fourth Proportional to 1,604.34, 2,404.69 and 679.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.34 : 2,404.69 = 679.32 : x
2. Step 2: Convert to fraction form
   1,604.34/2,404.69 = 679.32/x
3. Step 3: Cross multiply
   1,604.34x = 2,404.69 × 679.32
4. Step 4: Simplify right side
   1,604.34x = 1,633,552.31
5. Step 5: Solve for x
   x = 1,633,552.31/1,604.34
6. Step 6: Final answer
   x = 1,018.21