Finding the Fourth Proportional to 1,892.92, 2,610.90 and 1,145.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.92 : 2,610.90 = 1,145.56 : x
2. Step 2: Convert to fraction form
   1,892.92/2,610.90 = 1,145.56/x
3. Step 3: Cross multiply
   1,892.92x = 2,610.90 × 1,145.56
4. Step 4: Simplify right side
   1,892.92x = 2,990,942.60
5. Step 5: Solve for x
   x = 2,990,942.60/1,892.92
6. Step 6: Final answer
   x = 1,580.07