Finding the Fourth Proportional to 2,326.01, 3,209.86 and 1,278.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.01 : 3,209.86 = 1,278.05 : x
2. Step 2: Convert to fraction form
   2,326.01/3,209.86 = 1,278.05/x
3. Step 3: Cross multiply
   2,326.01x = 3,209.86 × 1,278.05
4. Step 4: Simplify right side
   2,326.01x = 4,102,371.20
5. Step 5: Solve for x
   x = 4,102,371.20/2,326.01
6. Step 6: Final answer
   x = 1,763.69