Finding the Fourth Proportional to 5,184.89, 7,155.34 and 2,947.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,184.89 : 7,155.34 = 2,947.15 : x
2. Step 2: Convert to fraction form
   5,184.89/7,155.34 = 2,947.15/x
3. Step 3: Cross multiply
   5,184.89x = 7,155.34 × 2,947.15
4. Step 4: Simplify right side
   5,184.89x = 21,087,860.28
5. Step 5: Solve for x
   x = 21,087,860.28/5,184.89
6. Step 6: Final answer
   x = 4,067.18