Finding the Fourth Proportional to 3,385.50, 5,078.34 and 1,077

Step by Step Solution

1. Step 1: Write the proportion equation
   3,385.50 : 5,078.34 = 1,077 : x
2. Step 2: Convert to fraction form
   3,385.50/5,078.34 = 1,077/x
3. Step 3: Cross multiply
   3,385.50x = 5,078.34 × 1,077
4. Step 4: Simplify right side
   3,385.50x = 5,469,372.18
5. Step 5: Solve for x
   x = 5,469,372.18/3,385.50
6. Step 6: Final answer
   x = 1,615.53