Finding the Fourth Proportional to 2,090.62, 3,136.24 and 994.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.62 : 3,136.24 = 994.38 : x
2. Step 2: Convert to fraction form
   2,090.62/3,136.24 = 994.38/x
3. Step 3: Cross multiply
   2,090.62x = 3,136.24 × 994.38
4. Step 4: Simplify right side
   2,090.62x = 3,118,614.33
5. Step 5: Solve for x
   x = 3,118,614.33/2,090.62
6. Step 6: Final answer
   x = 1,491.72