Finding the Fourth Proportional to 2,945.91, 4,418.56 and 998.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.91 : 4,418.56 = 998.07 : x
2. Step 2: Convert to fraction form
   2,945.91/4,418.56 = 998.07/x
3. Step 3: Cross multiply
   2,945.91x = 4,418.56 × 998.07
4. Step 4: Simplify right side
   2,945.91x = 4,410,032.18
5. Step 5: Solve for x
   x = 4,410,032.18/2,945.91
6. Step 6: Final answer
   x = 1,497.00