Finding the Fourth Proportional to 2,666.47, 3,679.27 and 1,547.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.47 : 3,679.27 = 1,547.15 : x
2. Step 2: Convert to fraction form
   2,666.47/3,679.27 = 1,547.15/x
3. Step 3: Cross multiply
   2,666.47x = 3,679.27 × 1,547.15
4. Step 4: Simplify right side
   2,666.47x = 5,692,382.58
5. Step 5: Solve for x
   x = 5,692,382.58/2,666.47
6. Step 6: Final answer
   x = 2,134.80