Finding the Fourth Proportional to 2,666.13, 3,679.52 and 1,487.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.13 : 3,679.52 = 1,487.31 : x
2. Step 2: Convert to fraction form
   2,666.13/3,679.52 = 1,487.31/x
3. Step 3: Cross multiply
   2,666.13x = 3,679.52 × 1,487.31
4. Step 4: Simplify right side
   2,666.13x = 5,472,579.45
5. Step 5: Solve for x
   x = 5,472,579.45/2,666.13
6. Step 6: Final answer
   x = 2,052.63