Finding the Fourth Proportional to 1,367.58, 2,061.04 and 1,236.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.58 : 2,061.04 = 1,236.09 : x
2. Step 2: Convert to fraction form
   1,367.58/2,061.04 = 1,236.09/x
3. Step 3: Cross multiply
   1,367.58x = 2,061.04 × 1,236.09
4. Step 4: Simplify right side
   1,367.58x = 2,547,624.75
5. Step 5: Solve for x
   x = 2,547,624.75/1,367.58
6. Step 6: Final answer
   x = 1,862.87