Finding the Fourth Proportional to 2,428.93, 3,642.50 and 868.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428.93 : 3,642.50 = 868.51 : x
2. Step 2: Convert to fraction form
   2,428.93/3,642.50 = 868.51/x
3. Step 3: Cross multiply
   2,428.93x = 3,642.50 × 868.51
4. Step 4: Simplify right side
   2,428.93x = 3,163,535.85
5. Step 5: Solve for x
   x = 3,163,535.85/2,428.93
6. Step 6: Final answer
   x = 1,302.44