Finding the Fourth Proportional to 2,265.86, 3,398.83 and 1,393.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.86 : 3,398.83 = 1,393.95 : x
2. Step 2: Convert to fraction form
   2,265.86/3,398.83 = 1,393.95/x
3. Step 3: Cross multiply
   2,265.86x = 3,398.83 × 1,393.95
4. Step 4: Simplify right side
   2,265.86x = 4,737,789.22
5. Step 5: Solve for x
   x = 4,737,789.22/2,265.86
6. Step 6: Final answer
   x = 2,090.94