Finding the Fourth Proportional to 2,051.20, 3,076.16 and 1,185.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.20 : 3,076.16 = 1,185.92 : x
2. Step 2: Convert to fraction form
   2,051.20/3,076.16 = 1,185.92/x
3. Step 3: Cross multiply
   2,051.20x = 3,076.16 × 1,185.92
4. Step 4: Simplify right side
   2,051.20x = 3,648,079.67
5. Step 5: Solve for x
   x = 3,648,079.67/2,051.20
6. Step 6: Final answer
   x = 1,778.51