Finding the Fourth Proportional to 2,666.37, 3,680.39 and 1,547.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.37 : 3,680.39 = 1,547.81 : x
2. Step 2: Convert to fraction form
   2,666.37/3,680.39 = 1,547.81/x
3. Step 3: Cross multiply
   2,666.37x = 3,680.39 × 1,547.81
4. Step 4: Simplify right side
   2,666.37x = 5,696,544.45
5. Step 5: Solve for x
   x = 5,696,544.45/2,666.37
6. Step 6: Final answer
   x = 2,136.44