Finding the Fourth Proportional to 2,150.37, 3,224.43 and 917.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.37 : 3,224.43 = 917.10 : x
2. Step 2: Convert to fraction form
   2,150.37/3,224.43 = 917.10/x
3. Step 3: Cross multiply
   2,150.37x = 3,224.43 × 917.10
4. Step 4: Simplify right side
   2,150.37x = 2,957,124.75
5. Step 5: Solve for x
   x = 2,957,124.75/2,150.37
6. Step 6: Final answer
   x = 1,375.17