Finding the Fourth Proportional to 1,136.96, 1,568.52 and 671.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.96 : 1,568.52 = 671.12 : x
2. Step 2: Convert to fraction form
   1,136.96/1,568.52 = 671.12/x
3. Step 3: Cross multiply
   1,136.96x = 1,568.52 × 671.12
4. Step 4: Simplify right side
   1,136.96x = 1,052,665.14
5. Step 5: Solve for x
   x = 1,052,665.14/1,136.96
6. Step 6: Final answer
   x = 925.86