Finding the Fourth Proportional to 2,456.38, 3,685.53 and 917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.38 : 3,685.53 = 917.50 : x
2. Step 2: Convert to fraction form
   2,456.38/3,685.53 = 917.50/x
3. Step 3: Cross multiply
   2,456.38x = 3,685.53 × 917.50
4. Step 4: Simplify right side
   2,456.38x = 3,381,473.78
5. Step 5: Solve for x
   x = 3,381,473.78/2,456.38
6. Step 6: Final answer
   x = 1,376.61