Finding the Fourth Proportional to 1,522.34, 2,100.71 and 859.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.34 : 2,100.71 = 859.25 : x
2. Step 2: Convert to fraction form
   1,522.34/2,100.71 = 859.25/x
3. Step 3: Cross multiply
   1,522.34x = 2,100.71 × 859.25
4. Step 4: Simplify right side
   1,522.34x = 1,805,036.02
5. Step 5: Solve for x
   x = 1,805,036.02/1,522.34
6. Step 6: Final answer
   x = 1,185.70