Finding the Fourth Proportional to 1,144, 1,713.57 and 1,080.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144 : 1,713.57 = 1,080.10 : x
2. Step 2: Convert to fraction form
   1,144/1,713.57 = 1,080.10/x
3. Step 3: Cross multiply
   1,144x = 1,713.57 × 1,080.10
4. Step 4: Simplify right side
   1,144x = 1,850,826.96
5. Step 5: Solve for x
   x = 1,850,826.96/1,144
6. Step 6: Final answer
   x = 1,617.86