Finding the Fourth Proportional to 1,081.62, 1,493.10 and 732.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.62 : 1,493.10 = 732.78 : x
2. Step 2: Convert to fraction form
   1,081.62/1,493.10 = 732.78/x
3. Step 3: Cross multiply
   1,081.62x = 1,493.10 × 732.78
4. Step 4: Simplify right side
   1,081.62x = 1,094,113.82
5. Step 5: Solve for x
   x = 1,094,113.82/1,081.62
6. Step 6: Final answer
   x = 1,011.55