Finding the Fourth Proportional to 1,421.99, 1,962.23 and 792.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.99 : 1,962.23 = 792.47 : x
2. Step 2: Convert to fraction form
   1,421.99/1,962.23 = 792.47/x
3. Step 3: Cross multiply
   1,421.99x = 1,962.23 × 792.47
4. Step 4: Simplify right side
   1,421.99x = 1,554,998.31
5. Step 5: Solve for x
   x = 1,554,998.31/1,421.99
6. Step 6: Final answer
   x = 1,093.54