Finding the Fourth Proportional to 1,171.61, 1,614.38 and 797.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.61 : 1,614.38 = 797.94 : x
2. Step 2: Convert to fraction form
   1,171.61/1,614.38 = 797.94/x
3. Step 3: Cross multiply
   1,171.61x = 1,614.38 × 797.94
4. Step 4: Simplify right side
   1,171.61x = 1,288,174.39
5. Step 5: Solve for x
   x = 1,288,174.39/1,171.61
6. Step 6: Final answer
   x = 1,099.50