Finding the Fourth Proportional to 2,285.57, 3,151.04 and 1,715.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.57 : 3,151.04 = 1,715.99 : x
2. Step 2: Convert to fraction form
   2,285.57/3,151.04 = 1,715.99/x
3. Step 3: Cross multiply
   2,285.57x = 3,151.04 × 1,715.99
4. Step 4: Simplify right side
   2,285.57x = 5,407,152.43
5. Step 5: Solve for x
   x = 5,407,152.43/2,285.57
6. Step 6: Final answer
   x = 2,365.78