Finding the Fourth Proportional to 3,432.55, 5,148.42 and 1,092.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,432.55 : 5,148.42 = 1,092.55 : x
2. Step 2: Convert to fraction form
   3,432.55/5,148.42 = 1,092.55/x
3. Step 3: Cross multiply
   3,432.55x = 5,148.42 × 1,092.55
4. Step 4: Simplify right side
   3,432.55x = 5,624,906.27
5. Step 5: Solve for x
   x = 5,624,906.27/3,432.55
6. Step 6: Final answer
   x = 1,638.70