Finding the Fourth Proportional to 3,842.69, 5,303.18 and 2,164.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,842.69 : 5,303.18 = 2,164.25 : x
2. Step 2: Convert to fraction form
   3,842.69/5,303.18 = 2,164.25/x
3. Step 3: Cross multiply
   3,842.69x = 5,303.18 × 2,164.25
4. Step 4: Simplify right side
   3,842.69x = 11,477,407.32
5. Step 5: Solve for x
   x = 11,477,407.32/3,842.69
6. Step 6: Final answer
   x = 2,986.82