Finding the Fourth Proportional to 1,427.58, 1,969.94 and 798.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.58 : 1,969.94 = 798.02 : x
2. Step 2: Convert to fraction form
   1,427.58/1,969.94 = 798.02/x
3. Step 3: Cross multiply
   1,427.58x = 1,969.94 × 798.02
4. Step 4: Simplify right side
   1,427.58x = 1,572,051.52
5. Step 5: Solve for x
   x = 1,572,051.52/1,427.58
6. Step 6: Final answer
   x = 1,101.20