Finding the Fourth Proportional to 1,382.61, 1,907.34 and 792.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.61 : 1,907.34 = 792.81 : x
2. Step 2: Convert to fraction form
   1,382.61/1,907.34 = 792.81/x
3. Step 3: Cross multiply
   1,382.61x = 1,907.34 × 792.81
4. Step 4: Simplify right side
   1,382.61x = 1,512,158.23
5. Step 5: Solve for x
   x = 1,512,158.23/1,382.61
6. Step 6: Final answer
   x = 1,093.70