Finding the Fourth Proportional to 3,372.72, 5,059.42 and 907.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,372.72 : 5,059.42 = 907.56 : x
2. Step 2: Convert to fraction form
   3,372.72/5,059.42 = 907.56/x
3. Step 3: Cross multiply
   3,372.72x = 5,059.42 × 907.56
4. Step 4: Simplify right side
   3,372.72x = 4,591,727.22
5. Step 5: Solve for x
   x = 4,591,727.22/3,372.72
6. Step 6: Final answer
   x = 1,361.43