Finding the Fourth Proportional to 1,174.55, 1,619.56 and 801.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.55 : 1,619.56 = 801.73 : x
2. Step 2: Convert to fraction form
   1,174.55/1,619.56 = 801.73/x
3. Step 3: Cross multiply
   1,174.55x = 1,619.56 × 801.73
4. Step 4: Simplify right side
   1,174.55x = 1,298,452.87
5. Step 5: Solve for x
   x = 1,298,452.87/1,174.55
6. Step 6: Final answer
   x = 1,105.49