Finding the Fourth Proportional to 3,915.53, 5,873.33 and 993.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.53 : 5,873.33 = 993.83 : x
2. Step 2: Convert to fraction form
   3,915.53/5,873.33 = 993.83/x
3. Step 3: Cross multiply
   3,915.53x = 5,873.33 × 993.83
4. Step 4: Simplify right side
   3,915.53x = 5,837,057.22
5. Step 5: Solve for x
   x = 5,837,057.22/3,915.53
6. Step 6: Final answer
   x = 1,490.75