Finding the Fourth Proportional to 1,919.25, 2,648.70 and 1,133.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.25 : 2,648.70 = 1,133.82 : x
2. Step 2: Convert to fraction form
   1,919.25/2,648.70 = 1,133.82/x
3. Step 3: Cross multiply
   1,919.25x = 2,648.70 × 1,133.82
4. Step 4: Simplify right side
   1,919.25x = 3,003,149.03
5. Step 5: Solve for x
   x = 3,003,149.03/1,919.25
6. Step 6: Final answer
   x = 1,564.75