Finding the Fourth Proportional to 1,992.42, 2,987.46 and 896.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.42 : 2,987.46 = 896.58 : x
2. Step 2: Convert to fraction form
   1,992.42/2,987.46 = 896.58/x
3. Step 3: Cross multiply
   1,992.42x = 2,987.46 × 896.58
4. Step 4: Simplify right side
   1,992.42x = 2,678,496.89
5. Step 5: Solve for x
   x = 2,678,496.89/1,992.42
6. Step 6: Final answer
   x = 1,344.34