Finding the Fourth Proportional to 2,738.12, 4,106.56 and 790.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.12 : 4,106.56 = 790.48 : x
2. Step 2: Convert to fraction form
   2,738.12/4,106.56 = 790.48/x
3. Step 3: Cross multiply
   2,738.12x = 4,106.56 × 790.48
4. Step 4: Simplify right side
   2,738.12x = 3,246,153.55
5. Step 5: Solve for x
   x = 3,246,153.55/2,738.12
6. Step 6: Final answer
   x = 1,185.54