Finding the Fourth Proportional to 2,671.98, 4,007.35 and 1,284.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.98 : 4,007.35 = 1,284.45 : x
2. Step 2: Convert to fraction form
   2,671.98/4,007.35 = 1,284.45/x
3. Step 3: Cross multiply
   2,671.98x = 4,007.35 × 1,284.45
4. Step 4: Simplify right side
   2,671.98x = 5,147,240.71
5. Step 5: Solve for x
   x = 5,147,240.71/2,671.98
6. Step 6: Final answer
   x = 1,926.38