Finding the Fourth Proportional to 2,978.27, 4,467.06 and 757.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.27 : 4,467.06 = 757.10 : x
2. Step 2: Convert to fraction form
   2,978.27/4,467.06 = 757.10/x
3. Step 3: Cross multiply
   2,978.27x = 4,467.06 × 757.10
4. Step 4: Simplify right side
   2,978.27x = 3,381,988.79
5. Step 5: Solve for x
   x = 3,381,988.79/2,978.27
6. Step 6: Final answer
   x = 1,135.56