Finding the Fourth Proportional to 1,822.28, 2,514.78 and 994.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822.28 : 2,514.78 = 994.28 : x
2. Step 2: Convert to fraction form
   1,822.28/2,514.78 = 994.28/x
3. Step 3: Cross multiply
   1,822.28x = 2,514.78 × 994.28
4. Step 4: Simplify right side
   1,822.28x = 2,500,395.46
5. Step 5: Solve for x
   x = 2,500,395.46/1,822.28
6. Step 6: Final answer
   x = 1,372.12