Finding the Fourth Proportional to 2,280.81, 3,411.49 and 1,401.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.81 : 3,411.49 = 1,401.15 : x
2. Step 2: Convert to fraction form
   2,280.81/3,411.49 = 1,401.15/x
3. Step 3: Cross multiply
   2,280.81x = 3,411.49 × 1,401.15
4. Step 4: Simplify right side
   2,280.81x = 4,780,009.21
5. Step 5: Solve for x
   x = 4,780,009.21/2,280.81
6. Step 6: Final answer
   x = 2,095.75