Finding the Fourth Proportional to 4,683.57, 7,018.05 and 2,948.55

Step by Step Solution

1. Step 1: Write the proportion equation
   4,683.57 : 7,018.05 = 2,948.55 : x
2. Step 2: Convert to fraction form
   4,683.57/7,018.05 = 2,948.55/x
3. Step 3: Cross multiply
   4,683.57x = 7,018.05 × 2,948.55
4. Step 4: Simplify right side
   4,683.57x = 20,693,071.33
5. Step 5: Solve for x
   x = 20,693,071.33/4,683.57
6. Step 6: Final answer
   x = 4,418.23