Finding the Fourth Proportional to 2,623.98, 3,934.96 and 868.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.98 : 3,934.96 = 868.45 : x
2. Step 2: Convert to fraction form
   2,623.98/3,934.96 = 868.45/x
3. Step 3: Cross multiply
   2,623.98x = 3,934.96 × 868.45
4. Step 4: Simplify right side
   2,623.98x = 3,417,316.01
5. Step 5: Solve for x
   x = 3,417,316.01/2,623.98
6. Step 6: Final answer
   x = 1,302.34