Finding the Fourth Proportional to 1,114.71, 1,538.25 and 617.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.71 : 1,538.25 = 617.37 : x
2. Step 2: Convert to fraction form
   1,114.71/1,538.25 = 617.37/x
3. Step 3: Cross multiply
   1,114.71x = 1,538.25 × 617.37
4. Step 4: Simplify right side
   1,114.71x = 949,669.40
5. Step 5: Solve for x
   x = 949,669.40/1,114.71
6. Step 6: Final answer
   x = 851.94