Finding the Fourth Proportional to 1,385.73, 1,922.11 and 1,335.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.73 : 1,922.11 = 1,335.86 : x
2. Step 2: Convert to fraction form
   1,385.73/1,922.11 = 1,335.86/x
3. Step 3: Cross multiply
   1,385.73x = 1,922.11 × 1,335.86
4. Step 4: Simplify right side
   1,385.73x = 2,567,669.86
5. Step 5: Solve for x
   x = 2,567,669.86/1,385.73
6. Step 6: Final answer
   x = 1,852.94