Finding the Fourth Proportional to 2,146.09, 3,219.59 and 759.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.09 : 3,219.59 = 759.47 : x
2. Step 2: Convert to fraction form
   2,146.09/3,219.59 = 759.47/x
3. Step 3: Cross multiply
   2,146.09x = 3,219.59 × 759.47
4. Step 4: Simplify right side
   2,146.09x = 2,445,182.02
5. Step 5: Solve for x
   x = 2,445,182.02/2,146.09
6. Step 6: Final answer
   x = 1,139.37