Finding the Fourth Proportional to 1,013.12, 1,398.50 and 792.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.12 : 1,398.50 = 792.14 : x
2. Step 2: Convert to fraction form
   1,013.12/1,398.50 = 792.14/x
3. Step 3: Cross multiply
   1,013.12x = 1,398.50 × 792.14
4. Step 4: Simplify right side
   1,013.12x = 1,107,803.83
5. Step 5: Solve for x
   x = 1,107,803.83/1,013.12
6. Step 6: Final answer
   x = 1,093.46