Finding the Fourth Proportional to 2,665.58, 3,678.54 and 1,486.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.58 : 3,678.54 = 1,486.74 : x
2. Step 2: Convert to fraction form
   2,665.58/3,678.54 = 1,486.74/x
3. Step 3: Cross multiply
   2,665.58x = 3,678.54 × 1,486.74
4. Step 4: Simplify right side
   2,665.58x = 5,469,032.56
5. Step 5: Solve for x
   x = 5,469,032.56/2,665.58
6. Step 6: Final answer
   x = 2,051.72