Finding the Fourth Proportional to 1,448.89, 1,998.68 and 859.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.89 : 1,998.68 = 859.01 : x
2. Step 2: Convert to fraction form
   1,448.89/1,998.68 = 859.01/x
3. Step 3: Cross multiply
   1,448.89x = 1,998.68 × 859.01
4. Step 4: Simplify right side
   1,448.89x = 1,716,871.82
5. Step 5: Solve for x
   x = 1,716,871.82/1,448.89
6. Step 6: Final answer
   x = 1,184.96