Finding the Fourth Proportional to 3,768.06, 5,655.12 and 2,126.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.06 : 5,655.12 = 2,126.19 : x
2. Step 2: Convert to fraction form
   3,768.06/5,655.12 = 2,126.19/x
3. Step 3: Cross multiply
   3,768.06x = 5,655.12 × 2,126.19
4. Step 4: Simplify right side
   3,768.06x = 12,023,859.59
5. Step 5: Solve for x
   x = 12,023,859.59/3,768.06
6. Step 6: Final answer
   x = 3,190.99