Finding the Fourth Proportional to 1,860.72, 2,568.15 and 1,074.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860.72 : 2,568.15 = 1,074.75 : x
2. Step 2: Convert to fraction form
   1,860.72/2,568.15 = 1,074.75/x
3. Step 3: Cross multiply
   1,860.72x = 2,568.15 × 1,074.75
4. Step 4: Simplify right side
   1,860.72x = 2,760,119.21
5. Step 5: Solve for x
   x = 2,760,119.21/1,860.72
6. Step 6: Final answer
   x = 1,483.36