Finding the Fourth Proportional to 1,892.03, 2,610.38 and 1,145.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.03 : 2,610.38 = 1,145.71 : x
2. Step 2: Convert to fraction form
   1,892.03/2,610.38 = 1,145.71/x
3. Step 3: Cross multiply
   1,892.03x = 2,610.38 × 1,145.71
4. Step 4: Simplify right side
   1,892.03x = 2,990,734.81
5. Step 5: Solve for x
   x = 2,990,734.81/1,892.03
6. Step 6: Final answer
   x = 1,580.70