Finding the Fourth Proportional to 3,860.31, 5,788.49 and 1,886.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,860.31 : 5,788.49 = 1,886.04 : x
2. Step 2: Convert to fraction form
   3,860.31/5,788.49 = 1,886.04/x
3. Step 3: Cross multiply
   3,860.31x = 5,788.49 × 1,886.04
4. Step 4: Simplify right side
   3,860.31x = 10,917,314.25
5. Step 5: Solve for x
   x = 10,917,314.25/3,860.31
6. Step 6: Final answer
   x = 2,828.09