Finding the Fourth Proportional to 3,290.73, 4,938.03 and 1,212.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,290.73 : 4,938.03 = 1,212.19 : x
2. Step 2: Convert to fraction form
   3,290.73/4,938.03 = 1,212.19/x
3. Step 3: Cross multiply
   3,290.73x = 4,938.03 × 1,212.19
4. Step 4: Simplify right side
   3,290.73x = 5,985,830.59
5. Step 5: Solve for x
   x = 5,985,830.59/3,290.73
6. Step 6: Final answer
   x = 1,819.00