Finding the Fourth Proportional to 1,145.73, 1,719.27 and 1,052.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.73 : 1,719.27 = 1,052.76 : x
2. Step 2: Convert to fraction form
   1,145.73/1,719.27 = 1,052.76/x
3. Step 3: Cross multiply
   1,145.73x = 1,719.27 × 1,052.76
4. Step 4: Simplify right side
   1,145.73x = 1,809,978.69
5. Step 5: Solve for x
   x = 1,809,978.69/1,145.73
6. Step 6: Final answer
   x = 1,579.76