Finding the Fourth Proportional to 2,868.89, 4,302.83 and 760.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.89 : 4,302.83 = 760.53 : x
2. Step 2: Convert to fraction form
   2,868.89/4,302.83 = 760.53/x
3. Step 3: Cross multiply
   2,868.89x = 4,302.83 × 760.53
4. Step 4: Simplify right side
   2,868.89x = 3,272,431.30
5. Step 5: Solve for x
   x = 3,272,431.30/2,868.89
6. Step 6: Final answer
   x = 1,140.66