Finding the Fourth Proportional to 1,968.83, 2,716.25 and 1,129.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.83 : 2,716.25 = 1,129.23 : x
2. Step 2: Convert to fraction form
   1,968.83/2,716.25 = 1,129.23/x
3. Step 3: Cross multiply
   1,968.83x = 2,716.25 × 1,129.23
4. Step 4: Simplify right side
   1,968.83x = 3,067,265.34
5. Step 5: Solve for x
   x = 3,067,265.34/1,968.83
6. Step 6: Final answer
   x = 1,557.92