Finding the Fourth Proportional to 2,729.30, 4,094.35 and 879.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,729.30 : 4,094.35 = 879.86 : x
2. Step 2: Convert to fraction form
   2,729.30/4,094.35 = 879.86/x
3. Step 3: Cross multiply
   2,729.30x = 4,094.35 × 879.86
4. Step 4: Simplify right side
   2,729.30x = 3,602,462.83
5. Step 5: Solve for x
   x = 3,602,462.83/2,729.30
6. Step 6: Final answer
   x = 1,319.92