Finding the Fourth Proportional to 1,436.93, 1,983.53 and 1,017.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.93 : 1,983.53 = 1,017.89 : x
2. Step 2: Convert to fraction form
   1,436.93/1,983.53 = 1,017.89/x
3. Step 3: Cross multiply
   1,436.93x = 1,983.53 × 1,017.89
4. Step 4: Simplify right side
   1,436.93x = 2,019,010.26
5. Step 5: Solve for x
   x = 2,019,010.26/1,436.93
6. Step 6: Final answer
   x = 1,405.09