Finding the Fourth Proportional to 3,451.30, 5,164.59 and 3,219.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.30 : 5,164.59 = 3,219.59 : x
2. Step 2: Convert to fraction form
   3,451.30/5,164.59 = 3,219.59/x
3. Step 3: Cross multiply
   3,451.30x = 5,164.59 × 3,219.59
4. Step 4: Simplify right side
   3,451.30x = 16,627,862.32
5. Step 5: Solve for x
   x = 16,627,862.32/3,451.30
6. Step 6: Final answer
   x = 4,817.85