Finding the Fourth Proportional to 2,892.69, 3,990.60 and 1,713.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.69 : 3,990.60 = 1,713.78 : x
2. Step 2: Convert to fraction form
   2,892.69/3,990.60 = 1,713.78/x
3. Step 3: Cross multiply
   2,892.69x = 3,990.60 × 1,713.78
4. Step 4: Simplify right side
   2,892.69x = 6,839,010.47
5. Step 5: Solve for x
   x = 6,839,010.47/2,892.69
6. Step 6: Final answer
   x = 2,364.24