Finding the Fourth Proportional to 1,461.28, 2,016.55 and 798.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,461.28 : 2,016.55 = 798.12 : x
2. Step 2: Convert to fraction form
   1,461.28/2,016.55 = 798.12/x
3. Step 3: Cross multiply
   1,461.28x = 2,016.55 × 798.12
4. Step 4: Simplify right side
   1,461.28x = 1,609,448.89
5. Step 5: Solve for x
   x = 1,609,448.89/1,461.28
6. Step 6: Final answer
   x = 1,101.40