Finding the Fourth Proportional to 2,928.19, 4,392.89 and 1,196.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.19 : 4,392.89 = 1,196.81 : x
2. Step 2: Convert to fraction form
   2,928.19/4,392.89 = 1,196.81/x
3. Step 3: Cross multiply
   2,928.19x = 4,392.89 × 1,196.81
4. Step 4: Simplify right side
   2,928.19x = 5,257,464.17
5. Step 5: Solve for x
   x = 5,257,464.17/2,928.19
6. Step 6: Final answer
   x = 1,795.47