Finding the Fourth Proportional to 1,421.99, 1,962.36 and 792.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.99 : 1,962.36 = 792.56 : x
2. Step 2: Convert to fraction form
   1,421.99/1,962.36 = 792.56/x
3. Step 3: Cross multiply
   1,421.99x = 1,962.36 × 792.56
4. Step 4: Simplify right side
   1,421.99x = 1,555,278.23
5. Step 5: Solve for x
   x = 1,555,278.23/1,421.99
6. Step 6: Final answer
   x = 1,093.74