Finding the Fourth Proportional to 2,870.47, 4,304.94 and 922.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.47 : 4,304.94 = 922.24 : x
2. Step 2: Convert to fraction form
   2,870.47/4,304.94 = 922.24/x
3. Step 3: Cross multiply
   2,870.47x = 4,304.94 × 922.24
4. Step 4: Simplify right side
   2,870.47x = 3,970,187.87
5. Step 5: Solve for x
   x = 3,970,187.87/2,870.47
6. Step 6: Final answer
   x = 1,383.11