Finding the Fourth Proportional to 2,665.63, 3,678.86 and 1,487.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.63 : 3,678.86 = 1,487.11 : x
2. Step 2: Convert to fraction form
   2,665.63/3,678.86 = 1,487.11/x
3. Step 3: Cross multiply
   2,665.63x = 3,678.86 × 1,487.11
4. Step 4: Simplify right side
   2,665.63x = 5,470,862.06
5. Step 5: Solve for x
   x = 5,470,862.06/2,665.63
6. Step 6: Final answer
   x = 2,052.37