Finding the Fourth Proportional to 1,179.67, 1,760.67 and 1,101.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179.67 : 1,760.67 = 1,101.91 : x
2. Step 2: Convert to fraction form
   1,179.67/1,760.67 = 1,101.91/x
3. Step 3: Cross multiply
   1,179.67x = 1,760.67 × 1,101.91
4. Step 4: Simplify right side
   1,179.67x = 1,940,099.88
5. Step 5: Solve for x
   x = 1,940,099.88/1,179.67
6. Step 6: Final answer
   x = 1,644.61