Finding the Fourth Proportional to 2,492.88, 3,739.50 and 1,105.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492.88 : 3,739.50 = 1,105.56 : x
2. Step 2: Convert to fraction form
   2,492.88/3,739.50 = 1,105.56/x
3. Step 3: Cross multiply
   2,492.88x = 3,739.50 × 1,105.56
4. Step 4: Simplify right side
   2,492.88x = 4,134,241.62
5. Step 5: Solve for x
   x = 4,134,241.62/2,492.88
6. Step 6: Final answer
   x = 1,658.42