Finding the Fourth Proportional to 2,870.18, 4,304.79 and 922.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.18 : 4,304.79 = 922.13 : x
2. Step 2: Convert to fraction form
   2,870.18/4,304.79 = 922.13/x
3. Step 3: Cross multiply
   2,870.18x = 4,304.79 × 922.13
4. Step 4: Simplify right side
   2,870.18x = 3,969,554.48
5. Step 5: Solve for x
   x = 3,969,554.48/2,870.18
6. Step 6: Final answer
   x = 1,383.04