Finding the Fourth Proportional to 2,385.44, 3,578.56 and 924.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.44 : 3,578.56 = 924.56 : x
2. Step 2: Convert to fraction form
   2,385.44/3,578.56 = 924.56/x
3. Step 3: Cross multiply
   2,385.44x = 3,578.56 × 924.56
4. Step 4: Simplify right side
   2,385.44x = 3,308,593.43
5. Step 5: Solve for x
   x = 3,308,593.43/2,385.44
6. Step 6: Final answer
   x = 1,387.00