Finding the Fourth Proportional to 1,760.76, 2,429.28 and 1,171.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.76 : 2,429.28 = 1,171.38 : x
2. Step 2: Convert to fraction form
   1,760.76/2,429.28 = 1,171.38/x
3. Step 3: Cross multiply
   1,760.76x = 2,429.28 × 1,171.38
4. Step 4: Simplify right side
   1,760.76x = 2,845,610.01
5. Step 5: Solve for x
   x = 2,845,610.01/1,760.76
6. Step 6: Final answer
   x = 1,616.13