Finding the Fourth Proportional to 1,421.93, 1,962.29 and 792.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.93 : 1,962.29 = 792.50 : x
2. Step 2: Convert to fraction form
   1,421.93/1,962.29 = 792.50/x
3. Step 3: Cross multiply
   1,421.93x = 1,962.29 × 792.50
4. Step 4: Simplify right side
   1,421.93x = 1,555,104.02
5. Step 5: Solve for x
   x = 1,555,104.02/1,421.93
6. Step 6: Final answer
   x = 1,093.66