Finding the Fourth Proportional to 3,404.60, 4,700.12 and 2,147.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.60 : 4,700.12 = 2,147.48 : x
2. Step 2: Convert to fraction form
   3,404.60/4,700.12 = 2,147.48/x
3. Step 3: Cross multiply
   3,404.60x = 4,700.12 × 2,147.48
4. Step 4: Simplify right side
   3,404.60x = 10,093,379.46
5. Step 5: Solve for x
   x = 10,093,379.46/3,404.60
6. Step 6: Final answer
   x = 2,964.63