Finding the Fourth Proportional to 2,870.09, 4,304.98 and 922.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.09 : 4,304.98 = 922.14 : x
2. Step 2: Convert to fraction form
   2,870.09/4,304.98 = 922.14/x
3. Step 3: Cross multiply
   2,870.09x = 4,304.98 × 922.14
4. Step 4: Simplify right side
   2,870.09x = 3,969,795.41
5. Step 5: Solve for x
   x = 3,969,795.41/2,870.09
6. Step 6: Final answer
   x = 1,383.16