Finding the Fourth Proportional to 1,096.74, 1,651.55 and 790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.74 : 1,651.55 = 790.72 : x
2. Step 2: Convert to fraction form
   1,096.74/1,651.55 = 790.72/x
3. Step 3: Cross multiply
   1,096.74x = 1,651.55 × 790.72
4. Step 4: Simplify right side
   1,096.74x = 1,305,905.53
5. Step 5: Solve for x
   x = 1,305,905.53/1,096.74
6. Step 6: Final answer
   x = 1,190.72