Finding the Fourth Proportional to 2,939.51, 4,408.83 and 1,090.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,939.51 : 4,408.83 = 1,090.31 : x
2. Step 2: Convert to fraction form
   2,939.51/4,408.83 = 1,090.31/x
3. Step 3: Cross multiply
   2,939.51x = 4,408.83 × 1,090.31
4. Step 4: Simplify right side
   2,939.51x = 4,806,969.39
5. Step 5: Solve for x
   x = 4,806,969.39/2,939.51
6. Step 6: Final answer
   x = 1,635.30