Finding the Fourth Proportional to 3,380.85, 4,667.25 and 2,123.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.85 : 4,667.25 = 2,123.73 : x
2. Step 2: Convert to fraction form
   3,380.85/4,667.25 = 2,123.73/x
3. Step 3: Cross multiply
   3,380.85x = 4,667.25 × 2,123.73
4. Step 4: Simplify right side
   3,380.85x = 9,911,978.84
5. Step 5: Solve for x
   x = 9,911,978.84/3,380.85
6. Step 6: Final answer
   x = 2,931.80