Finding the Fourth Proportional to 2,948.10, 4,422.12 and 756.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,948.10 : 4,422.12 = 756.82 : x
2. Step 2: Convert to fraction form
   2,948.10/4,422.12 = 756.82/x
3. Step 3: Cross multiply
   2,948.10x = 4,422.12 × 756.82
4. Step 4: Simplify right side
   2,948.10x = 3,346,748.86
5. Step 5: Solve for x
   x = 3,346,748.86/2,948.10
6. Step 6: Final answer
   x = 1,135.22