Finding the Fourth Proportional to 1,892.05, 2,610.60 and 1,145.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.05 : 2,610.60 = 1,145.99 : x
2. Step 2: Convert to fraction form
   1,892.05/2,610.60 = 1,145.99/x
3. Step 3: Cross multiply
   1,892.05x = 2,610.60 × 1,145.99
4. Step 4: Simplify right side
   1,892.05x = 2,991,728.02
5. Step 5: Solve for x
   x = 2,991,728.02/1,892.05
6. Step 6: Final answer
   x = 1,581.21