Finding the Fourth Proportional to 3,449.07, 5,172.82 and 983.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.07 : 5,172.82 = 983.30 : x
2. Step 2: Convert to fraction form
   3,449.07/5,172.82 = 983.30/x
3. Step 3: Cross multiply
   3,449.07x = 5,172.82 × 983.30
4. Step 4: Simplify right side
   3,449.07x = 5,086,405.58
5. Step 5: Solve for x
   x = 5,086,405.58/3,449.07
6. Step 6: Final answer
   x = 1,474.72