Finding the Fourth Proportional to 5,400.77, 8,100.89 and 2,114.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,400.77 : 8,100.89 = 2,114.47 : x
2. Step 2: Convert to fraction form
   5,400.77/8,100.89 = 2,114.47/x
3. Step 3: Cross multiply
   5,400.77x = 8,100.89 × 2,114.47
4. Step 4: Simplify right side
   5,400.77x = 17,129,037.80
5. Step 5: Solve for x
   x = 17,129,037.80/5,400.77
6. Step 6: Final answer
   x = 3,171.59