Finding the Fourth Proportional to 2,947.20, 4,066.24 and 1,767.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.20 : 4,066.24 = 1,767.84 : x
2. Step 2: Convert to fraction form
   2,947.20/4,066.24 = 1,767.84/x
3. Step 3: Cross multiply
   2,947.20x = 4,066.24 × 1,767.84
4. Step 4: Simplify right side
   2,947.20x = 7,188,461.72
5. Step 5: Solve for x
   x = 7,188,461.72/2,947.20
6. Step 6: Final answer
   x = 2,439.08