Finding the Fourth Proportional to 1,992.79, 2,749.58 and 1,153.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.79 : 2,749.58 = 1,153.46 : x
2. Step 2: Convert to fraction form
   1,992.79/2,749.58 = 1,153.46/x
3. Step 3: Cross multiply
   1,992.79x = 2,749.58 × 1,153.46
4. Step 4: Simplify right side
   1,992.79x = 3,171,540.30
5. Step 5: Solve for x
   x = 3,171,540.30/1,992.79
6. Step 6: Final answer
   x = 1,591.51