Finding the Fourth Proportional to 1,578.72, 2,367.76 and 604.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578.72 : 2,367.76 = 604.58 : x
2. Step 2: Convert to fraction form
   1,578.72/2,367.76 = 604.58/x
3. Step 3: Cross multiply
   1,578.72x = 2,367.76 × 604.58
4. Step 4: Simplify right side
   1,578.72x = 1,431,500.34
5. Step 5: Solve for x
   x = 1,431,500.34/1,578.72
6. Step 6: Final answer
   x = 906.75