Finding the Fourth Proportional to 1,760.71, 2,428.72 and 1,163.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.71 : 2,428.72 = 1,163.21 : x
2. Step 2: Convert to fraction form
   1,760.71/2,428.72 = 1,163.21/x
3. Step 3: Cross multiply
   1,760.71x = 2,428.72 × 1,163.21
4. Step 4: Simplify right side
   1,760.71x = 2,825,111.39
5. Step 5: Solve for x
   x = 2,825,111.39/1,760.71
6. Step 6: Final answer
   x = 1,604.53