Finding the Fourth Proportional to 2,886.41, 3,980.57 and 1,927.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.41 : 3,980.57 = 1,927.62 : x
2. Step 2: Convert to fraction form
   2,886.41/3,980.57 = 1,927.62/x
3. Step 3: Cross multiply
   2,886.41x = 3,980.57 × 1,927.62
4. Step 4: Simplify right side
   2,886.41x = 7,673,016.71
5. Step 5: Solve for x
   x = 7,673,016.71/2,886.41
6. Step 6: Final answer
   x = 2,658.33