Finding the Fourth Proportional to 4,930.89, 7,394.72 and 1,643.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,930.89 : 7,394.72 = 1,643.10 : x
2. Step 2: Convert to fraction form
   4,930.89/7,394.72 = 1,643.10/x
3. Step 3: Cross multiply
   4,930.89x = 7,394.72 × 1,643.10
4. Step 4: Simplify right side
   4,930.89x = 12,150,256.22
5. Step 5: Solve for x
   x = 12,150,256.22/4,930.89
6. Step 6: Final answer
   x = 2,464.11