Finding the Fourth Proportional to 3,449.55, 5,172.81 and 983.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.55 : 5,172.81 = 983.82 : x
2. Step 2: Convert to fraction form
   3,449.55/5,172.81 = 983.82/x
3. Step 3: Cross multiply
   3,449.55x = 5,172.81 × 983.82
4. Step 4: Simplify right side
   3,449.55x = 5,089,088.07
5. Step 5: Solve for x
   x = 5,089,088.07/3,449.55
6. Step 6: Final answer
   x = 1,475.29