Finding the Fourth Proportional to 1,196.55, 1,651.79 and 798.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.55 : 1,651.79 = 798.87 : x
2. Step 2: Convert to fraction form
   1,196.55/1,651.79 = 798.87/x
3. Step 3: Cross multiply
   1,196.55x = 1,651.79 × 798.87
4. Step 4: Simplify right side
   1,196.55x = 1,319,565.48
5. Step 5: Solve for x
   x = 1,319,565.48/1,196.55
6. Step 6: Final answer
   x = 1,102.81