Finding the Fourth Proportional to 1,522.37, 2,100.86 and 859.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.37 : 2,100.86 = 859.22 : x
2. Step 2: Convert to fraction form
   1,522.37/2,100.86 = 859.22/x
3. Step 3: Cross multiply
   1,522.37x = 2,100.86 × 859.22
4. Step 4: Simplify right side
   1,522.37x = 1,805,090.42
5. Step 5: Solve for x
   x = 1,805,090.42/1,522.37
6. Step 6: Final answer
   x = 1,185.71