Finding the Fourth Proportional to 1,385.27, 1,919.92 and 1,359.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.27 : 1,919.92 = 1,359.35 : x
2. Step 2: Convert to fraction form
   1,385.27/1,919.92 = 1,359.35/x
3. Step 3: Cross multiply
   1,385.27x = 1,919.92 × 1,359.35
4. Step 4: Simplify right side
   1,385.27x = 2,609,843.25
5. Step 5: Solve for x
   x = 2,609,843.25/1,385.27
6. Step 6: Final answer
   x = 1,884.00