Finding the Fourth Proportional to 5,998.06, 8,275.15 and 3,478.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,998.06 : 8,275.15 = 3,478.78 : x
2. Step 2: Convert to fraction form
   5,998.06/8,275.15 = 3,478.78/x
3. Step 3: Cross multiply
   5,998.06x = 8,275.15 × 3,478.78
4. Step 4: Simplify right side
   5,998.06x = 28,787,426.32
5. Step 5: Solve for x
   x = 28,787,426.32/5,998.06
6. Step 6: Final answer
   x = 4,799.46