Finding the Fourth Proportional to 2,665.71, 3,678.53 and 1,486.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.71 : 3,678.53 = 1,486.71 : x
2. Step 2: Convert to fraction form
   2,665.71/3,678.53 = 1,486.71/x
3. Step 3: Cross multiply
   2,665.71x = 3,678.53 × 1,486.71
4. Step 4: Simplify right side
   2,665.71x = 5,468,899.90
5. Step 5: Solve for x
   x = 5,468,899.90/2,665.71
6. Step 6: Final answer
   x = 2,051.57