Finding the Fourth Proportional to 1,889.57, 2,608.17 and 1,103.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.57 : 2,608.17 = 1,103.81 : x
2. Step 2: Convert to fraction form
   1,889.57/2,608.17 = 1,103.81/x
3. Step 3: Cross multiply
   1,889.57x = 2,608.17 × 1,103.81
4. Step 4: Simplify right side
   1,889.57x = 2,878,906.95
5. Step 5: Solve for x
   x = 2,878,906.95/1,889.57
6. Step 6: Final answer
   x = 1,523.58