Finding the Fourth Proportional to 1,896.72, 2,617.81 and 1,099.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.72 : 2,617.81 = 1,099.93 : x
2. Step 2: Convert to fraction form
   1,896.72/2,617.81 = 1,099.93/x
3. Step 3: Cross multiply
   1,896.72x = 2,617.81 × 1,099.93
4. Step 4: Simplify right side
   1,896.72x = 2,879,407.75
5. Step 5: Solve for x
   x = 2,879,407.75/1,896.72
6. Step 6: Final answer
   x = 1,518.10