Finding the Fourth Proportional to 2,453.69, 3,681.26 and 993.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.69 : 3,681.26 = 993.89 : x
2. Step 2: Convert to fraction form
   2,453.69/3,681.26 = 993.89/x
3. Step 3: Cross multiply
   2,453.69x = 3,681.26 × 993.89
4. Step 4: Simplify right side
   2,453.69x = 3,658,767.50
5. Step 5: Solve for x
   x = 3,658,767.50/2,453.69
6. Step 6: Final answer
   x = 1,491.13