Finding the Fourth Proportional to 2,196.37, 3,292.40 and 879.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.37 : 3,292.40 = 879.76 : x
2. Step 2: Convert to fraction form
   2,196.37/3,292.40 = 879.76/x
3. Step 3: Cross multiply
   2,196.37x = 3,292.40 × 879.76
4. Step 4: Simplify right side
   2,196.37x = 2,896,523.19
5. Step 5: Solve for x
   x = 2,896,523.19/2,196.37
6. Step 6: Final answer
   x = 1,318.78