Finding the Fourth Proportional to 3,292.46, 4,938.78 and 1,100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,292.46 : 4,938.78 = 1,100.78 : x
2. Step 2: Convert to fraction form
   3,292.46/4,938.78 = 1,100.78/x
3. Step 3: Cross multiply
   3,292.46x = 4,938.78 × 1,100.78
4. Step 4: Simplify right side
   3,292.46x = 5,436,510.25
5. Step 5: Solve for x
   x = 5,436,510.25/3,292.46
6. Step 6: Final answer
   x = 1,651.20