Finding the Fourth Proportional to 2,665.59, 3,678.48 and 1,486.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.59 : 3,678.48 = 1,486.68 : x
2. Step 2: Convert to fraction form
   2,665.59/3,678.48 = 1,486.68/x
3. Step 3: Cross multiply
   2,665.59x = 3,678.48 × 1,486.68
4. Step 4: Simplify right side
   2,665.59x = 5,468,722.65
5. Step 5: Solve for x
   x = 5,468,722.65/2,665.59
6. Step 6: Final answer
   x = 2,051.60