Finding the Fourth Proportional to 5,103.38, 7,654.34 and 1,640.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.38 : 7,654.34 = 1,640.18 : x
2. Step 2: Convert to fraction form
   5,103.38/7,654.34 = 1,640.18/x
3. Step 3: Cross multiply
   5,103.38x = 7,654.34 × 1,640.18
4. Step 4: Simplify right side
   5,103.38x = 12,554,495.38
5. Step 5: Solve for x
   x = 12,554,495.38/5,103.38
6. Step 6: Final answer
   x = 2,460.04