Finding the Fourth Proportional to 3,190.30, 4,782.71 and 1,214.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,190.30 : 4,782.71 = 1,214.83 : x
2. Step 2: Convert to fraction form
   3,190.30/4,782.71 = 1,214.83/x
3. Step 3: Cross multiply
   3,190.30x = 4,782.71 × 1,214.83
4. Step 4: Simplify right side
   3,190.30x = 5,810,179.59
5. Step 5: Solve for x
   x = 5,810,179.59/3,190.30
6. Step 6: Final answer
   x = 1,821.20