Finding the Fourth Proportional to 2,768.79, 4,152.30 and 1,013.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.79 : 4,152.30 = 1,013.57 : x
2. Step 2: Convert to fraction form
   2,768.79/4,152.30 = 1,013.57/x
3. Step 3: Cross multiply
   2,768.79x = 4,152.30 × 1,013.57
4. Step 4: Simplify right side
   2,768.79x = 4,208,646.71
5. Step 5: Solve for x
   x = 4,208,646.71/2,768.79
6. Step 6: Final answer
   x = 1,520.03