Finding the Fourth Proportional to 2,388.42, 3,295.65 and 1,393.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.42 : 3,295.65 = 1,393.50 : x
2. Step 2: Convert to fraction form
   2,388.42/3,295.65 = 1,393.50/x
3. Step 3: Cross multiply
   2,388.42x = 3,295.65 × 1,393.50
4. Step 4: Simplify right side
   2,388.42x = 4,592,505.86
5. Step 5: Solve for x
   x = 4,592,505.86/2,388.42
6. Step 6: Final answer
   x = 1,922.82