Finding the Fourth Proportional to 1,083.72, 1,495.47 and 617.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.72 : 1,495.47 = 617.97 : x
2. Step 2: Convert to fraction form
   1,083.72/1,495.47 = 617.97/x
3. Step 3: Cross multiply
   1,083.72x = 1,495.47 × 617.97
4. Step 4: Simplify right side
   1,083.72x = 924,155.60
5. Step 5: Solve for x
   x = 924,155.60/1,083.72
6. Step 6: Final answer
   x = 852.76