Finding the Fourth Proportional to 3,404.37, 5,080.65 and 3,316.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.37 : 5,080.65 = 3,316.89 : x
2. Step 2: Convert to fraction form
   3,404.37/5,080.65 = 3,316.89/x
3. Step 3: Cross multiply
   3,404.37x = 5,080.65 × 3,316.89
4. Step 4: Simplify right side
   3,404.37x = 16,851,957.18
5. Step 5: Solve for x
   x = 16,851,957.18/3,404.37
6. Step 6: Final answer
   x = 4,950.10