Finding the Fourth Proportional to 3,476.89, 5,215.35 and 879.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,476.89 : 5,215.35 = 879.82 : x
2. Step 2: Convert to fraction form
   3,476.89/5,215.35 = 879.82/x
3. Step 3: Cross multiply
   3,476.89x = 5,215.35 × 879.82
4. Step 4: Simplify right side
   3,476.89x = 4,588,543.16
5. Step 5: Solve for x
   x = 4,588,543.16/3,476.89
6. Step 6: Final answer
   x = 1,319.73