Finding the Fourth Proportional to 2,146.25, 3,219.63 and 759.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.25 : 3,219.63 = 759.30 : x
2. Step 2: Convert to fraction form
   2,146.25/3,219.63 = 759.30/x
3. Step 3: Cross multiply
   2,146.25x = 3,219.63 × 759.30
4. Step 4: Simplify right side
   2,146.25x = 2,444,665.06
5. Step 5: Solve for x
   x = 2,444,665.06/2,146.25
6. Step 6: Final answer
   x = 1,139.04