Finding the Fourth Proportional to 2,839.08, 4,255.98 and 2,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,839.08 : 4,255.98 = 2,605.50 : x
2. Step 2: Convert to fraction form
   2,839.08/4,255.98 = 2,605.50/x
3. Step 3: Cross multiply
   2,839.08x = 4,255.98 × 2,605.50
4. Step 4: Simplify right side
   2,839.08x = 11,088,955.89
5. Step 5: Solve for x
   x = 11,088,955.89/2,839.08
6. Step 6: Final answer
   x = 3,905.83