Finding the Fourth Proportional to 3,485.59, 5,224.71 and 1,144.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485.59 : 5,224.71 = 1,144.98 : x
2. Step 2: Convert to fraction form
   3,485.59/5,224.71 = 1,144.98/x
3. Step 3: Cross multiply
   3,485.59x = 5,224.71 × 1,144.98
4. Step 4: Simplify right side
   3,485.59x = 5,982,192.75
5. Step 5: Solve for x
   x = 5,982,192.75/3,485.59
6. Step 6: Final answer
   x = 1,716.27