Finding the Fourth Proportional to 1,136.73, 1,699.31 and 1,019.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.73 : 1,699.31 = 1,019.35 : x
2. Step 2: Convert to fraction form
   1,136.73/1,699.31 = 1,019.35/x
3. Step 3: Cross multiply
   1,136.73x = 1,699.31 × 1,019.35
4. Step 4: Simplify right side
   1,136.73x = 1,732,196.32
5. Step 5: Solve for x
   x = 1,732,196.32/1,136.73
6. Step 6: Final answer
   x = 1,523.84