Finding the Fourth Proportional to 1,822.31, 2,514.79 and 994.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822.31 : 2,514.79 = 994.31 : x
2. Step 2: Convert to fraction form
   1,822.31/2,514.79 = 994.31/x
3. Step 3: Cross multiply
   1,822.31x = 2,514.79 × 994.31
4. Step 4: Simplify right side
   1,822.31x = 2,500,480.84
5. Step 5: Solve for x
   x = 2,500,480.84/1,822.31
6. Step 6: Final answer
   x = 1,372.15