Finding the Fourth Proportional to 2,892.36, 3,990.54 and 1,772.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.36 : 3,990.54 = 1,772.14 : x
2. Step 2: Convert to fraction form
   2,892.36/3,990.54 = 1,772.14/x
3. Step 3: Cross multiply
   2,892.36x = 3,990.54 × 1,772.14
4. Step 4: Simplify right side
   2,892.36x = 7,071,795.56
5. Step 5: Solve for x
   x = 7,071,795.56/2,892.36
6. Step 6: Final answer
   x = 2,444.99