Finding the Fourth Proportional to 2,456.25, 3,686.04 and 917.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.25 : 3,686.04 = 917.25 : x
2. Step 2: Convert to fraction form
   2,456.25/3,686.04 = 917.25/x
3. Step 3: Cross multiply
   2,456.25x = 3,686.04 × 917.25
4. Step 4: Simplify right side
   2,456.25x = 3,381,020.19
5. Step 5: Solve for x
   x = 3,381,020.19/2,456.25
6. Step 6: Final answer
   x = 1,376.50