Finding the Fourth Proportional to 1,896.59, 2,617.67 and 1,100.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.59 : 2,617.67 = 1,100.05 : x
2. Step 2: Convert to fraction form
   1,896.59/2,617.67 = 1,100.05/x
3. Step 3: Cross multiply
   1,896.59x = 2,617.67 × 1,100.05
4. Step 4: Simplify right side
   1,896.59x = 2,879,564.09
5. Step 5: Solve for x
   x = 2,879,564.09/1,896.59
6. Step 6: Final answer
   x = 1,518.28