Finding the Fourth Proportional to 2,768.47, 4,152.72 and 1,013.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.47 : 4,152.72 = 1,013.53 : x
2. Step 2: Convert to fraction form
   2,768.47/4,152.72 = 1,013.53/x
3. Step 3: Cross multiply
   2,768.47x = 4,152.72 × 1,013.53
4. Step 4: Simplify right side
   2,768.47x = 4,208,893.26
5. Step 5: Solve for x
   x = 4,208,893.26/2,768.47
6. Step 6: Final answer
   x = 1,520.30