Finding the Fourth Proportional to 3,448.26, 5,173.31 and 983.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,448.26 : 5,173.31 = 983.30 : x
2. Step 2: Convert to fraction form
   3,448.26/5,173.31 = 983.30/x
3. Step 3: Cross multiply
   3,448.26x = 5,173.31 × 983.30
4. Step 4: Simplify right side
   3,448.26x = 5,086,892.31
5. Step 5: Solve for x
   x = 5,086,892.31/3,448.26
6. Step 6: Final answer
   x = 1,475.21