Finding the Fourth Proportional to 3,181.56, 4,770.72 and 2,143.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,181.56 : 4,770.72 = 2,143.14 : x
2. Step 2: Convert to fraction form
   3,181.56/4,770.72 = 2,143.14/x
3. Step 3: Cross multiply
   3,181.56x = 4,770.72 × 2,143.14
4. Step 4: Simplify right side
   3,181.56x = 10,224,320.86
5. Step 5: Solve for x
   x = 10,224,320.86/3,181.56
6. Step 6: Final answer
   x = 3,213.62