Finding the Fourth Proportional to 2,077.27, 2,867.78 and 1,415.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.27 : 2,867.78 = 1,415.09 : x
2. Step 2: Convert to fraction form
   2,077.27/2,867.78 = 1,415.09/x
3. Step 3: Cross multiply
   2,077.27x = 2,867.78 × 1,415.09
4. Step 4: Simplify right side
   2,077.27x = 4,058,177.51
5. Step 5: Solve for x
   x = 4,058,177.51/2,077.27
6. Step 6: Final answer
   x = 1,953.61