Finding the Fourth Proportional to 3,448.86, 5,172.89 and 983.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,448.86 : 5,172.89 = 983.63 : x
2. Step 2: Convert to fraction form
   3,448.86/5,172.89 = 983.63/x
3. Step 3: Cross multiply
   3,448.86x = 5,172.89 × 983.63
4. Step 4: Simplify right side
   3,448.86x = 5,088,179.01
5. Step 5: Solve for x
   x = 5,088,179.01/3,448.86
6. Step 6: Final answer
   x = 1,475.32