Finding the Fourth Proportional to 1,427.91, 1,970.49 and 798.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.91 : 1,970.49 = 798.49 : x
2. Step 2: Convert to fraction form
   1,427.91/1,970.49 = 798.49/x
3. Step 3: Cross multiply
   1,427.91x = 1,970.49 × 798.49
4. Step 4: Simplify right side
   1,427.91x = 1,573,416.56
5. Step 5: Solve for x
   x = 1,573,416.56/1,427.91
6. Step 6: Final answer
   x = 1,101.90