Finding the Fourth Proportional to 2,072.88, 2,860.62 and 1,141.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.88 : 2,860.62 = 1,141.40 : x
2. Step 2: Convert to fraction form
   2,072.88/2,860.62 = 1,141.40/x
3. Step 3: Cross multiply
   2,072.88x = 2,860.62 × 1,141.40
4. Step 4: Simplify right side
   2,072.88x = 3,265,111.67
5. Step 5: Solve for x
   x = 3,265,111.67/2,072.88
6. Step 6: Final answer
   x = 1,575.16