Finding the Fourth Proportional to 2,880.05, 4,320.16 and 800.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.05 : 4,320.16 = 800.06 : x
2. Step 2: Convert to fraction form
   2,880.05/4,320.16 = 800.06/x
3. Step 3: Cross multiply
   2,880.05x = 4,320.16 × 800.06
4. Step 4: Simplify right side
   2,880.05x = 3,456,396.01
5. Step 5: Solve for x
   x = 3,456,396.01/2,880.05
6. Step 6: Final answer
   x = 1,200.12