Finding the Fourth Proportional to 1,427.63, 1,969.99 and 798.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.63 : 1,969.99 = 798.12 : x
2. Step 2: Convert to fraction form
   1,427.63/1,969.99 = 798.12/x
3. Step 3: Cross multiply
   1,427.63x = 1,969.99 × 798.12
4. Step 4: Simplify right side
   1,427.63x = 1,572,286.42
5. Step 5: Solve for x
   x = 1,572,286.42/1,427.63
6. Step 6: Final answer
   x = 1,101.33