Finding the Fourth Proportional to 2,051.12, 3,076.92 and 896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.12 : 3,076.92 = 896.72 : x
2. Step 2: Convert to fraction form
   2,051.12/3,076.92 = 896.72/x
3. Step 3: Cross multiply
   2,051.12x = 3,076.92 × 896.72
4. Step 4: Simplify right side
   2,051.12x = 2,759,135.70
5. Step 5: Solve for x
   x = 2,759,135.70/2,051.12
6. Step 6: Final answer
   x = 1,345.18