Finding the Fourth Proportional to 2,945.34, 4,418.28 and 997.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.34 : 4,418.28 = 997.56 : x
2. Step 2: Convert to fraction form
   2,945.34/4,418.28 = 997.56/x
3. Step 3: Cross multiply
   2,945.34x = 4,418.28 × 997.56
4. Step 4: Simplify right side
   2,945.34x = 4,407,499.40
5. Step 5: Solve for x
   x = 4,407,499.40/2,945.34
6. Step 6: Final answer
   x = 1,496.43