Finding the Fourth Proportional to 4,930.86, 7,394.72 and 1,643.08

Step by Step Solution

1. Step 1: Write the proportion equation
   4,930.86 : 7,394.72 = 1,643.08 : x
2. Step 2: Convert to fraction form
   4,930.86/7,394.72 = 1,643.08/x
3. Step 3: Cross multiply
   4,930.86x = 7,394.72 × 1,643.08
4. Step 4: Simplify right side
   4,930.86x = 12,150,116.54
5. Step 5: Solve for x
   x = 12,150,116.54/4,930.86
6. Step 6: Final answer
   x = 2,464.10