Finding the Fourth Proportional to 1,421.91, 1,962.33 and 792.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.91 : 1,962.33 = 792.43 : x
2. Step 2: Convert to fraction form
   1,421.91/1,962.33 = 792.43/x
3. Step 3: Cross multiply
   1,421.91x = 1,962.33 × 792.43
4. Step 4: Simplify right side
   1,421.91x = 1,555,009.16
5. Step 5: Solve for x
   x = 1,555,009.16/1,421.91
6. Step 6: Final answer
   x = 1,093.61