Finding the Fourth Proportional to 2,671.71, 4,006.54 and 1,284.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.71 : 4,006.54 = 1,284.72 : x
2. Step 2: Convert to fraction form
   2,671.71/4,006.54 = 1,284.72/x
3. Step 3: Cross multiply
   2,671.71x = 4,006.54 × 1,284.72
4. Step 4: Simplify right side
   2,671.71x = 5,147,282.07
5. Step 5: Solve for x
   x = 5,147,282.07/2,671.71
6. Step 6: Final answer
   x = 1,926.59