Finding the Fourth Proportional to 2,146.83, 3,219.42 and 759.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.83 : 3,219.42 = 759.91 : x
2. Step 2: Convert to fraction form
   2,146.83/3,219.42 = 759.91/x
3. Step 3: Cross multiply
   2,146.83x = 3,219.42 × 759.91
4. Step 4: Simplify right side
   2,146.83x = 2,446,469.45
5. Step 5: Solve for x
   x = 2,446,469.45/2,146.83
6. Step 6: Final answer
   x = 1,139.57