Finding the Fourth Proportional to 2,666.05, 3,679.23 and 1,487.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.05 : 3,679.23 = 1,487.20 : x
2. Step 2: Convert to fraction form
   2,666.05/3,679.23 = 1,487.20/x
3. Step 3: Cross multiply
   2,666.05x = 3,679.23 × 1,487.20
4. Step 4: Simplify right side
   2,666.05x = 5,471,725.02
5. Step 5: Solve for x
   x = 5,471,725.02/2,666.05
6. Step 6: Final answer
   x = 2,052.37