Finding the Fourth Proportional to 2,939.94, 4,410.72 and 993.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,939.94 : 4,410.72 = 993.51 : x
2. Step 2: Convert to fraction form
   2,939.94/4,410.72 = 993.51/x
3. Step 3: Cross multiply
   2,939.94x = 4,410.72 × 993.51
4. Step 4: Simplify right side
   2,939.94x = 4,382,094.43
5. Step 5: Solve for x
   x = 4,382,094.43/2,939.94
6. Step 6: Final answer
   x = 1,490.54