Finding the Fourth Proportional to 2,667.16, 3,680.78 and 1,488.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.16 : 3,680.78 = 1,488.45 : x
2. Step 2: Convert to fraction form
   2,667.16/3,680.78 = 1,488.45/x
3. Step 3: Cross multiply
   2,667.16x = 3,680.78 × 1,488.45
4. Step 4: Simplify right side
   2,667.16x = 5,478,663.35
5. Step 5: Solve for x
   x = 5,478,663.35/2,667.16
6. Step 6: Final answer
   x = 2,054.12