Finding the Fourth Proportional to 2,108.90, 3,164.03 and 1,013.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.90 : 3,164.03 = 1,013.34 : x
2. Step 2: Convert to fraction form
   2,108.90/3,164.03 = 1,013.34/x
3. Step 3: Cross multiply
   2,108.90x = 3,164.03 × 1,013.34
4. Step 4: Simplify right side
   2,108.90x = 3,206,233.09
5. Step 5: Solve for x
   x = 3,206,233.09/2,108.90
6. Step 6: Final answer
   x = 1,520.34