Finding the Fourth Proportional to 2,013.96, 3,018.12 and 1,090.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.96 : 3,018.12 = 1,090.02 : x
2. Step 2: Convert to fraction form
   2,013.96/3,018.12 = 1,090.02/x
3. Step 3: Cross multiply
   2,013.96x = 3,018.12 × 1,090.02
4. Step 4: Simplify right side
   2,013.96x = 3,289,811.16
5. Step 5: Solve for x
   x = 3,289,811.16/2,013.96
6. Step 6: Final answer
   x = 1,633.50