Finding the Fourth Proportional to 1,427.72, 1,970.06 and 798.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.72 : 1,970.06 = 798.14 : x
2. Step 2: Convert to fraction form
   1,427.72/1,970.06 = 798.14/x
3. Step 3: Cross multiply
   1,427.72x = 1,970.06 × 798.14
4. Step 4: Simplify right side
   1,427.72x = 1,572,384.62
5. Step 5: Solve for x
   x = 1,572,384.62/1,427.72
6. Step 6: Final answer
   x = 1,101.33