Finding the Fourth Proportional to 3,100.83, 4,640.34 and 2,224.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.83 : 4,640.34 = 2,224.32 : x
2. Step 2: Convert to fraction form
   3,100.83/4,640.34 = 2,224.32/x
3. Step 3: Cross multiply
   3,100.83x = 4,640.34 × 2,224.32
4. Step 4: Simplify right side
   3,100.83x = 10,321,601.07
5. Step 5: Solve for x
   x = 10,321,601.07/3,100.83
6. Step 6: Final answer
   x = 3,328.66