Finding the Fourth Proportional to 1,658.36, 2,287.76 and 994.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.36 : 2,287.76 = 994.05 : x
2. Step 2: Convert to fraction form
   1,658.36/2,287.76 = 994.05/x
3. Step 3: Cross multiply
   1,658.36x = 2,287.76 × 994.05
4. Step 4: Simplify right side
   1,658.36x = 2,274,156.03
5. Step 5: Solve for x
   x = 2,274,156.03/1,658.36
6. Step 6: Final answer
   x = 1,371.33