Finding the Fourth Proportional to 1,159.37, 1,738.71 and 611.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,159.37 : 1,738.71 = 611.25 : x
2. Step 2: Convert to fraction form
   1,159.37/1,738.71 = 611.25/x
3. Step 3: Cross multiply
   1,159.37x = 1,738.71 × 611.25
4. Step 4: Simplify right side
   1,159.37x = 1,062,786.49
5. Step 5: Solve for x
   x = 1,062,786.49/1,159.37
6. Step 6: Final answer
   x = 916.70