Finding the Fourth Proportional to 3,717.76, 5,123.20 and 2,667.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,717.76 : 5,123.20 = 2,667.84 : x
2. Step 2: Convert to fraction form
   3,717.76/5,123.20 = 2,667.84/x
3. Step 3: Cross multiply
   3,717.76x = 5,123.20 × 2,667.84
4. Step 4: Simplify right side
   3,717.76x = 13,667,877.89
5. Step 5: Solve for x
   x = 13,667,877.89/3,717.76
6. Step 6: Final answer
   x = 3,676.37