Finding the Fourth Proportional to 2,253.42, 3,380.40 and 792.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.42 : 3,380.40 = 792.72 : x
2. Step 2: Convert to fraction form
   2,253.42/3,380.40 = 792.72/x
3. Step 3: Cross multiply
   2,253.42x = 3,380.40 × 792.72
4. Step 4: Simplify right side
   2,253.42x = 2,679,710.69
5. Step 5: Solve for x
   x = 2,679,710.69/2,253.42
6. Step 6: Final answer
   x = 1,189.17