Finding the Fourth Proportional to 1,892.57, 2,610.77 and 1,229.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.57 : 2,610.77 = 1,229.18 : x
2. Step 2: Convert to fraction form
   1,892.57/2,610.77 = 1,229.18/x
3. Step 3: Cross multiply
   1,892.57x = 2,610.77 × 1,229.18
4. Step 4: Simplify right side
   1,892.57x = 3,209,087.07
5. Step 5: Solve for x
   x = 3,209,087.07/1,892.57
6. Step 6: Final answer
   x = 1,695.63