Finding the Fourth Proportional to 1,449.02, 1,999.56 and 859.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449.02 : 1,999.56 = 859.34 : x
2. Step 2: Convert to fraction form
   1,449.02/1,999.56 = 859.34/x
3. Step 3: Cross multiply
   1,449.02x = 1,999.56 × 859.34
4. Step 4: Simplify right side
   1,449.02x = 1,718,301.89
5. Step 5: Solve for x
   x = 1,718,301.89/1,449.02
6. Step 6: Final answer
   x = 1,185.84