Finding the Fourth Proportional to 3,386, 5,076.72 and 1,411.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386 : 5,076.72 = 1,411.10 : x
2. Step 2: Convert to fraction form
   3,386/5,076.72 = 1,411.10/x
3. Step 3: Cross multiply
   3,386x = 5,076.72 × 1,411.10
4. Step 4: Simplify right side
   3,386x = 7,163,759.59
5. Step 5: Solve for x
   x = 7,163,759.59/3,386
6. Step 6: Final answer
   x = 2,115.70