Finding the Fourth Proportional to 2,630.61, 3,946.15 and 756.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.61 : 3,946.15 = 756.51 : x
2. Step 2: Convert to fraction form
   2,630.61/3,946.15 = 756.51/x
3. Step 3: Cross multiply
   2,630.61x = 3,946.15 × 756.51
4. Step 4: Simplify right side
   2,630.61x = 2,985,301.94
5. Step 5: Solve for x
   x = 2,985,301.94/2,630.61
6. Step 6: Final answer
   x = 1,134.83