Finding the Fourth Proportional to 1,127.82, 1,544.73 and 1,061.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,127.82 : 1,544.73 = 1,061.40 : x
2. Step 2: Convert to fraction form
   1,127.82/1,544.73 = 1,061.40/x
3. Step 3: Cross multiply
   1,127.82x = 1,544.73 × 1,061.40
4. Step 4: Simplify right side
   1,127.82x = 1,639,576.42
5. Step 5: Solve for x
   x = 1,639,576.42/1,127.82
6. Step 6: Final answer
   x = 1,453.76