Finding the Fourth Proportional to 1,968.41, 2,716.32 and 1,128.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.41 : 2,716.32 = 1,128.53 : x
2. Step 2: Convert to fraction form
   1,968.41/2,716.32 = 1,128.53/x
3. Step 3: Cross multiply
   1,968.41x = 2,716.32 × 1,128.53
4. Step 4: Simplify right side
   1,968.41x = 3,065,448.61
5. Step 5: Solve for x
   x = 3,065,448.61/1,968.41
6. Step 6: Final answer
   x = 1,557.32