Finding the Fourth Proportional to 2,076.47, 3,115.86 and 1,151.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.47 : 3,115.86 = 1,151.90 : x
2. Step 2: Convert to fraction form
   2,076.47/3,115.86 = 1,151.90/x
3. Step 3: Cross multiply
   2,076.47x = 3,115.86 × 1,151.90
4. Step 4: Simplify right side
   2,076.47x = 3,589,143.55
5. Step 5: Solve for x
   x = 3,589,143.55/2,076.47
6. Step 6: Final answer
   x = 1,728.49