Finding the Fourth Proportional to 2,190.52, 3,283.68 and 1,408.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.52 : 3,283.68 = 1,408.34 : x
2. Step 2: Convert to fraction form
   2,190.52/3,283.68 = 1,408.34/x
3. Step 3: Cross multiply
   2,190.52x = 3,283.68 × 1,408.34
4. Step 4: Simplify right side
   2,190.52x = 4,624,537.89
5. Step 5: Solve for x
   x = 4,624,537.89/2,190.52
6. Step 6: Final answer
   x = 2,111.16