Finding the Fourth Proportional to 3,393.89, 5,091.63 and 1,418.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,393.89 : 5,091.63 = 1,418.42 : x
2. Step 2: Convert to fraction form
   3,393.89/5,091.63 = 1,418.42/x
3. Step 3: Cross multiply
   3,393.89x = 5,091.63 × 1,418.42
4. Step 4: Simplify right side
   3,393.89x = 7,222,044.37
5. Step 5: Solve for x
   x = 7,222,044.37/3,393.89
6. Step 6: Final answer
   x = 2,127.96