Finding the Fourth Proportional to 2,551.43, 3,520.08 and 1,667.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.43 : 3,520.08 = 1,667.76 : x
2. Step 2: Convert to fraction form
   2,551.43/3,520.08 = 1,667.76/x
3. Step 3: Cross multiply
   2,551.43x = 3,520.08 × 1,667.76
4. Step 4: Simplify right side
   2,551.43x = 5,870,635.42
5. Step 5: Solve for x
   x = 5,870,635.42/2,551.43
6. Step 6: Final answer
   x = 2,300.92