Finding the Fourth Proportional to 1,493.76, 2,238.45 and 789.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.76 : 2,238.45 = 789.06 : x
2. Step 2: Convert to fraction form
   1,493.76/2,238.45 = 789.06/x
3. Step 3: Cross multiply
   1,493.76x = 2,238.45 × 789.06
4. Step 4: Simplify right side
   1,493.76x = 1,766,271.36
5. Step 5: Solve for x
   x = 1,766,271.36/1,493.76
6. Step 6: Final answer
   x = 1,182.43