Finding the Fourth Proportional to 2,666.78, 3,680.14 and 1,487.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.78 : 3,680.14 = 1,487.82 : x
2. Step 2: Convert to fraction form
   2,666.78/3,680.14 = 1,487.82/x
3. Step 3: Cross multiply
   2,666.78x = 3,680.14 × 1,487.82
4. Step 4: Simplify right side
   2,666.78x = 5,475,385.89
5. Step 5: Solve for x
   x = 5,475,385.89/2,666.78
6. Step 6: Final answer
   x = 2,053.18