Finding the Fourth Proportional to 2,680.30, 4,017.36 and 1,036.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.30 : 4,017.36 = 1,036.12 : x
2. Step 2: Convert to fraction form
   2,680.30/4,017.36 = 1,036.12/x
3. Step 3: Cross multiply
   2,680.30x = 4,017.36 × 1,036.12
4. Step 4: Simplify right side
   2,680.30x = 4,162,467.04
5. Step 5: Solve for x
   x = 4,162,467.04/2,680.30
6. Step 6: Final answer
   x = 1,552.99