Finding the Fourth Proportional to 2,381.78, 3,573.23 and 738.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.78 : 3,573.23 = 738.24 : x
2. Step 2: Convert to fraction form
   2,381.78/3,573.23 = 738.24/x
3. Step 3: Cross multiply
   2,381.78x = 3,573.23 × 738.24
4. Step 4: Simplify right side
   2,381.78x = 2,637,901.32
5. Step 5: Solve for x
   x = 2,637,901.32/2,381.78
6. Step 6: Final answer
   x = 1,107.53