Finding the Fourth Proportional to 5,978.49, 8,974.67 and 3,210.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.49 : 8,974.67 = 3,210.59 : x
2. Step 2: Convert to fraction form
   5,978.49/8,974.67 = 3,210.59/x
3. Step 3: Cross multiply
   5,978.49x = 8,974.67 × 3,210.59
4. Step 4: Simplify right side
   5,978.49x = 28,813,924.83
5. Step 5: Solve for x
   x = 28,813,924.83/5,978.49
6. Step 6: Final answer
   x = 4,819.60