Finding the Fourth Proportional to 1,168.12, 1,748.04 and 859.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.12 : 1,748.04 = 859.24 : x
2. Step 2: Convert to fraction form
   1,168.12/1,748.04 = 859.24/x
3. Step 3: Cross multiply
   1,168.12x = 1,748.04 × 859.24
4. Step 4: Simplify right side
   1,168.12x = 1,501,985.89
5. Step 5: Solve for x
   x = 1,501,985.89/1,168.12
6. Step 6: Final answer
   x = 1,285.81