Finding the Fourth Proportional to 2,109.10, 3,162.30 and 1,015.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.10 : 3,162.30 = 1,015.06 : x
2. Step 2: Convert to fraction form
   2,109.10/3,162.30 = 1,015.06/x
3. Step 3: Cross multiply
   2,109.10x = 3,162.30 × 1,015.06
4. Step 4: Simplify right side
   2,109.10x = 3,209,924.24
5. Step 5: Solve for x
   x = 3,209,924.24/2,109.10
6. Step 6: Final answer
   x = 1,521.94