Finding the Fourth Proportional to 3,363.98, 5,046.63 and 1,172.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,363.98 : 5,046.63 = 1,172.78 : x
2. Step 2: Convert to fraction form
   3,363.98/5,046.63 = 1,172.78/x
3. Step 3: Cross multiply
   3,363.98x = 5,046.63 × 1,172.78
4. Step 4: Simplify right side
   3,363.98x = 5,918,586.73
5. Step 5: Solve for x
   x = 5,918,586.73/3,363.98
6. Step 6: Final answer
   x = 1,759.40