Finding the Fourth Proportional to 1,145.61, 1,580.76 and 792.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.61 : 1,580.76 = 792.27 : x
2. Step 2: Convert to fraction form
   1,145.61/1,580.76 = 792.27/x
3. Step 3: Cross multiply
   1,145.61x = 1,580.76 × 792.27
4. Step 4: Simplify right side
   1,145.61x = 1,252,388.73
5. Step 5: Solve for x
   x = 1,252,388.73/1,145.61
6. Step 6: Final answer
   x = 1,093.21