Finding the Fourth Proportional to 2,971.46, 4,454.15 and 2,147.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.46 : 4,454.15 = 2,147.69 : x
2. Step 2: Convert to fraction form
   2,971.46/4,454.15 = 2,147.69/x
3. Step 3: Cross multiply
   2,971.46x = 4,454.15 × 2,147.69
4. Step 4: Simplify right side
   2,971.46x = 9,566,100.40
5. Step 5: Solve for x
   x = 9,566,100.40/2,971.46
6. Step 6: Final answer
   x = 3,219.33