Finding the Fourth Proportional to 2,992.58, 4,489.18 and 1,145.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992.58 : 4,489.18 = 1,145.25 : x
2. Step 2: Convert to fraction form
   2,992.58/4,489.18 = 1,145.25/x
3. Step 3: Cross multiply
   2,992.58x = 4,489.18 × 1,145.25
4. Step 4: Simplify right side
   2,992.58x = 5,141,233.40
5. Step 5: Solve for x
   x = 5,141,233.40/2,992.58
6. Step 6: Final answer
   x = 1,717.99