Finding the Fourth Proportional to 1,104.57, 1,657.13 and 617.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.57 : 1,657.13 = 617.94 : x
2. Step 2: Convert to fraction form
   1,104.57/1,657.13 = 617.94/x
3. Step 3: Cross multiply
   1,104.57x = 1,657.13 × 617.94
4. Step 4: Simplify right side
   1,104.57x = 1,024,003.82
5. Step 5: Solve for x
   x = 1,024,003.82/1,104.57
6. Step 6: Final answer
   x = 927.06