Finding the Fourth Proportional to 2,667.15, 3,680.61 and 1,488.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.15 : 3,680.61 = 1,488.20 : x
2. Step 2: Convert to fraction form
   2,667.15/3,680.61 = 1,488.20/x
3. Step 3: Cross multiply
   2,667.15x = 3,680.61 × 1,488.20
4. Step 4: Simplify right side
   2,667.15x = 5,477,465.40
5. Step 5: Solve for x
   x = 5,477,465.40/2,667.15
6. Step 6: Final answer
   x = 2,053.68