Finding the Fourth Proportional to 2,753.77, 4,131.51 and 879.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,753.77 : 4,131.51 = 879.94 : x
2. Step 2: Convert to fraction form
   2,753.77/4,131.51 = 879.94/x
3. Step 3: Cross multiply
   2,753.77x = 4,131.51 × 879.94
4. Step 4: Simplify right side
   2,753.77x = 3,635,480.91
5. Step 5: Solve for x
   x = 3,635,480.91/2,753.77
6. Step 6: Final answer
   x = 1,320.18