Finding the Fourth Proportional to 2,712.81, 4,066.15 and 1,248.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,712.81 : 4,066.15 = 1,248.94 : x
2. Step 2: Convert to fraction form
   2,712.81/4,066.15 = 1,248.94/x
3. Step 3: Cross multiply
   2,712.81x = 4,066.15 × 1,248.94
4. Step 4: Simplify right side
   2,712.81x = 5,078,377.38
5. Step 5: Solve for x
   x = 5,078,377.38/2,712.81
6. Step 6: Final answer
   x = 1,872.00