Finding the Fourth Proportional to 1,083.38, 1,495.06 and 617.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.38 : 1,495.06 = 617.63 : x
2. Step 2: Convert to fraction form
   1,083.38/1,495.06 = 617.63/x
3. Step 3: Cross multiply
   1,083.38x = 1,495.06 × 617.63
4. Step 4: Simplify right side
   1,083.38x = 923,384.89
5. Step 5: Solve for x
   x = 923,384.89/1,083.38
6. Step 6: Final answer
   x = 852.32