Finding the Fourth Proportional to 2,453.72, 3,681.24 and 993.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.72 : 3,681.24 = 993.86 : x
2. Step 2: Convert to fraction form
   2,453.72/3,681.24 = 993.86/x
3. Step 3: Cross multiply
   2,453.72x = 3,681.24 × 993.86
4. Step 4: Simplify right side
   2,453.72x = 3,658,637.19
5. Step 5: Solve for x
   x = 3,658,637.19/2,453.72
6. Step 6: Final answer
   x = 1,491.06