Finding the Fourth Proportional to 3,914.51, 5,401.98 and 2,235.65

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.51 : 5,401.98 = 2,235.65 : x
2. Step 2: Convert to fraction form
   3,914.51/5,401.98 = 2,235.65/x
3. Step 3: Cross multiply
   3,914.51x = 5,401.98 × 2,235.65
4. Step 4: Simplify right side
   3,914.51x = 12,076,909.58
5. Step 5: Solve for x
   x = 12,076,909.58/3,914.51
6. Step 6: Final answer
   x = 3,085.17