Finding the Fourth Proportional to 2,325.56, 3,209.10 and 1,393.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,325.56 : 3,209.10 = 1,393.88 : x
2. Step 2: Convert to fraction form
   2,325.56/3,209.10 = 1,393.88/x
3. Step 3: Cross multiply
   2,325.56x = 3,209.10 × 1,393.88
4. Step 4: Simplify right side
   2,325.56x = 4,473,100.31
5. Step 5: Solve for x
   x = 4,473,100.31/2,325.56
6. Step 6: Final answer
   x = 1,923.45