Finding the Fourth Proportional to 3,665.39, 5,059.06 and 3,074.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.39 : 5,059.06 = 3,074.90 : x
2. Step 2: Convert to fraction form
   3,665.39/5,059.06 = 3,074.90/x
3. Step 3: Cross multiply
   3,665.39x = 5,059.06 × 3,074.90
4. Step 4: Simplify right side
   3,665.39x = 15,556,070.61
5. Step 5: Solve for x
   x = 15,556,070.61/3,665.39
6. Step 6: Final answer
   x = 4,244.05