Finding the Fourth Proportional to 2,665.85, 3,678.88 and 1,486.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.85 : 3,678.88 = 1,486.99 : x
2. Step 2: Convert to fraction form
   2,665.85/3,678.88 = 1,486.99/x
3. Step 3: Cross multiply
   2,665.85x = 3,678.88 × 1,486.99
4. Step 4: Simplify right side
   2,665.85x = 5,470,444.86
5. Step 5: Solve for x
   x = 5,470,444.86/2,665.85
6. Step 6: Final answer
   x = 2,052.05