Finding the Fourth Proportional to 2,099.35, 2,896.89 and 1,155.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.35 : 2,896.89 = 1,155.12 : x
2. Step 2: Convert to fraction form
   2,099.35/2,896.89 = 1,155.12/x
3. Step 3: Cross multiply
   2,099.35x = 2,896.89 × 1,155.12
4. Step 4: Simplify right side
   2,099.35x = 3,346,255.58
5. Step 5: Solve for x
   x = 3,346,255.58/2,099.35
6. Step 6: Final answer
   x = 1,593.95