Finding the Fourth Proportional to 1,455.94, 2,009.15 and 792.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455.94 : 2,009.15 = 792.78 : x
2. Step 2: Convert to fraction form
   1,455.94/2,009.15 = 792.78/x
3. Step 3: Cross multiply
   1,455.94x = 2,009.15 × 792.78
4. Step 4: Simplify right side
   1,455.94x = 1,592,815.92
5. Step 5: Solve for x
   x = 1,592,815.92/1,455.94
6. Step 6: Final answer
   x = 1,094.01