Finding the Fourth Proportional to 2,947.31, 4,420.94 and 756.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.31 : 4,420.94 = 756.03 : x
2. Step 2: Convert to fraction form
   2,947.31/4,420.94 = 756.03/x
3. Step 3: Cross multiply
   2,947.31x = 4,420.94 × 756.03
4. Step 4: Simplify right side
   2,947.31x = 3,342,359.49
5. Step 5: Solve for x
   x = 3,342,359.49/2,947.31
6. Step 6: Final answer
   x = 1,134.04