Finding the Fourth Proportional to 2,151.61, 2,949.89 and 2,112.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.61 : 2,949.89 = 2,112.73 : x
2. Step 2: Convert to fraction form
   2,151.61/2,949.89 = 2,112.73/x
3. Step 3: Cross multiply
   2,151.61x = 2,949.89 × 2,112.73
4. Step 4: Simplify right side
   2,151.61x = 6,232,321.10
5. Step 5: Solve for x
   x = 6,232,321.10/2,151.61
6. Step 6: Final answer
   x = 2,896.58