Finding the Fourth Proportional to 1,919.43, 2,648.83 and 1,133.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.43 : 2,648.83 = 1,133.47 : x
2. Step 2: Convert to fraction form
   1,919.43/2,648.83 = 1,133.47/x
3. Step 3: Cross multiply
   1,919.43x = 2,648.83 × 1,133.47
4. Step 4: Simplify right side
   1,919.43x = 3,002,369.34
5. Step 5: Solve for x
   x = 3,002,369.34/1,919.43
6. Step 6: Final answer
   x = 1,564.20