Finding the Fourth Proportional to 1,660.12, 2,490.72 and 794.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,660.12 : 2,490.72 = 794.50 : x
2. Step 2: Convert to fraction form
   1,660.12/2,490.72 = 794.50/x
3. Step 3: Cross multiply
   1,660.12x = 2,490.72 × 794.50
4. Step 4: Simplify right side
   1,660.12x = 1,978,877.04
5. Step 5: Solve for x
   x = 1,978,877.04/1,660.12
6. Step 6: Final answer
   x = 1,192.01