Finding the Fourth Proportional to 1,522.45, 2,100.94 and 859.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.45 : 2,100.94 = 859.33 : x
2. Step 2: Convert to fraction form
   1,522.45/2,100.94 = 859.33/x
3. Step 3: Cross multiply
   1,522.45x = 2,100.94 × 859.33
4. Step 4: Simplify right side
   1,522.45x = 1,805,400.77
5. Step 5: Solve for x
   x = 1,805,400.77/1,522.45
6. Step 6: Final answer
   x = 1,185.85