Finding the Fourth Proportional to 3,321.64, 4,982.69 and 1,100.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,321.64 : 4,982.69 = 1,100.47 : x
2. Step 2: Convert to fraction form
   3,321.64/4,982.69 = 1,100.47/x
3. Step 3: Cross multiply
   3,321.64x = 4,982.69 × 1,100.47
4. Step 4: Simplify right side
   3,321.64x = 5,483,300.86
5. Step 5: Solve for x
   x = 5,483,300.86/3,321.64
6. Step 6: Final answer
   x = 1,650.78