Finding the Fourth Proportional to 1,427.82, 1,970.51 and 798.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.82 : 1,970.51 = 798.35 : x
2. Step 2: Convert to fraction form
   1,427.82/1,970.51 = 798.35/x
3. Step 3: Cross multiply
   1,427.82x = 1,970.51 × 798.35
4. Step 4: Simplify right side
   1,427.82x = 1,573,156.66
5. Step 5: Solve for x
   x = 1,573,156.66/1,427.82
6. Step 6: Final answer
   x = 1,101.79