Finding the Fourth Proportional to 1,436.17, 1,981.88 and 798.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.17 : 1,981.88 = 798.07 : x
2. Step 2: Convert to fraction form
   1,436.17/1,981.88 = 798.07/x
3. Step 3: Cross multiply
   1,436.17x = 1,981.88 × 798.07
4. Step 4: Simplify right side
   1,436.17x = 1,581,669.06
5. Step 5: Solve for x
   x = 1,581,669.06/1,436.17
6. Step 6: Final answer
   x = 1,101.31