Finding the Fourth Proportional to 2,579.96, 3,870.22 and 848.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.96 : 3,870.22 = 848.58 : x
2. Step 2: Convert to fraction form
   2,579.96/3,870.22 = 848.58/x
3. Step 3: Cross multiply
   2,579.96x = 3,870.22 × 848.58
4. Step 4: Simplify right side
   2,579.96x = 3,284,191.29
5. Step 5: Solve for x
   x = 3,284,191.29/2,579.96
6. Step 6: Final answer
   x = 1,272.96