Finding the Fourth Proportional to 1,455.21, 2,008.17 and 792.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455.21 : 2,008.17 = 792.03 : x
2. Step 2: Convert to fraction form
   1,455.21/2,008.17 = 792.03/x
3. Step 3: Cross multiply
   1,455.21x = 2,008.17 × 792.03
4. Step 4: Simplify right side
   1,455.21x = 1,590,530.89
5. Step 5: Solve for x
   x = 1,590,530.89/1,455.21
6. Step 6: Final answer
   x = 1,092.99