Finding the Fourth Proportional to 1,603.50, 2,407.27 and 1,119.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603.50 : 2,407.27 = 1,119.12 : x
2. Step 2: Convert to fraction form
   1,603.50/2,407.27 = 1,119.12/x
3. Step 3: Cross multiply
   1,603.50x = 2,407.27 × 1,119.12
4. Step 4: Simplify right side
   1,603.50x = 2,694,014.28
5. Step 5: Solve for x
   x = 2,694,014.28/1,603.50
6. Step 6: Final answer
   x = 1,680.09