Finding the Fourth Proportional to 5,091.89, 7,637.83 and 1,393.97

Step by Step Solution

1. Step 1: Write the proportion equation
   5,091.89 : 7,637.83 = 1,393.97 : x
2. Step 2: Convert to fraction form
   5,091.89/7,637.83 = 1,393.97/x
3. Step 3: Cross multiply
   5,091.89x = 7,637.83 × 1,393.97
4. Step 4: Simplify right side
   5,091.89x = 10,646,905.89
5. Step 5: Solve for x
   x = 10,646,905.89/5,091.89
6. Step 6: Final answer
   x = 2,090.95