Finding the Fourth Proportional to 2,948.69, 4,421.50 and 868.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,948.69 : 4,421.50 = 868.42 : x
2. Step 2: Convert to fraction form
   2,948.69/4,421.50 = 868.42/x
3. Step 3: Cross multiply
   2,948.69x = 4,421.50 × 868.42
4. Step 4: Simplify right side
   2,948.69x = 3,839,719.03
5. Step 5: Solve for x
   x = 3,839,719.03/2,948.69
6. Step 6: Final answer
   x = 1,302.18