Finding the Fourth Proportional to 3,783.07, 5,667.45 and 2,140.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,783.07 : 5,667.45 = 2,140.79 : x
2. Step 2: Convert to fraction form
   3,783.07/5,667.45 = 2,140.79/x
3. Step 3: Cross multiply
   3,783.07x = 5,667.45 × 2,140.79
4. Step 4: Simplify right side
   3,783.07x = 12,132,826.43
5. Step 5: Solve for x
   x = 12,132,826.43/3,783.07
6. Step 6: Final answer
   x = 3,207.14