Finding the Fourth Proportional to 2,680.99, 4,020.82 and 1,036.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.99 : 4,020.82 = 1,036.48 : x
2. Step 2: Convert to fraction form
   2,680.99/4,020.82 = 1,036.48/x
3. Step 3: Cross multiply
   2,680.99x = 4,020.82 × 1,036.48
4. Step 4: Simplify right side
   2,680.99x = 4,167,499.51
5. Step 5: Solve for x
   x = 4,167,499.51/2,680.99
6. Step 6: Final answer
   x = 1,554.46