Finding the Fourth Proportional to 1,081.60, 1,493.33 and 727.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.60 : 1,493.33 = 727.93 : x
2. Step 2: Convert to fraction form
   1,081.60/1,493.33 = 727.93/x
3. Step 3: Cross multiply
   1,081.60x = 1,493.33 × 727.93
4. Step 4: Simplify right side
   1,081.60x = 1,087,033.93
5. Step 5: Solve for x
   x = 1,087,033.93/1,081.60
6. Step 6: Final answer
   x = 1,005.02