Finding the Fourth Proportional to 2,667.13, 3,680.90 and 1,488.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.13 : 3,680.90 = 1,488.31 : x
2. Step 2: Convert to fraction form
   2,667.13/3,680.90 = 1,488.31/x
3. Step 3: Cross multiply
   2,667.13x = 3,680.90 × 1,488.31
4. Step 4: Simplify right side
   2,667.13x = 5,478,320.28
5. Step 5: Solve for x
   x = 5,478,320.28/2,667.13
6. Step 6: Final answer
   x = 2,054.01