Finding the Fourth Proportional to 2,077.97, 2,866.13 and 1,238.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.97 : 2,866.13 = 1,238.03 : x
2. Step 2: Convert to fraction form
   2,077.97/2,866.13 = 1,238.03/x
3. Step 3: Cross multiply
   2,077.97x = 2,866.13 × 1,238.03
4. Step 4: Simplify right side
   2,077.97x = 3,548,334.40
5. Step 5: Solve for x
   x = 3,548,334.40/2,077.97
6. Step 6: Final answer
   x = 1,707.59