Finding the Fourth Proportional to 2,665.39, 3,678.26 and 1,547

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.39 : 3,678.26 = 1,547 : x
2. Step 2: Convert to fraction form
   2,665.39/3,678.26 = 1,547/x
3. Step 3: Cross multiply
   2,665.39x = 3,678.26 × 1,547
4. Step 4: Simplify right side
   2,665.39x = 5,690,268.22
5. Step 5: Solve for x
   x = 5,690,268.22/2,665.39
6. Step 6: Final answer
   x = 2,134.87