Finding the Fourth Proportional to 2,090.10, 3,136.56 and 1,116.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.10 : 3,136.56 = 1,116.90 : x
2. Step 2: Convert to fraction form
   2,090.10/3,136.56 = 1,116.90/x
3. Step 3: Cross multiply
   2,090.10x = 3,136.56 × 1,116.90
4. Step 4: Simplify right side
   2,090.10x = 3,503,223.86
5. Step 5: Solve for x
   x = 3,503,223.86/2,090.10
6. Step 6: Final answer
   x = 1,676.10