Finding the Fourth Proportional to 1,522.29, 2,100.80 and 859.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.29 : 2,100.80 = 859.17 : x
2. Step 2: Convert to fraction form
   1,522.29/2,100.80 = 859.17/x
3. Step 3: Cross multiply
   1,522.29x = 2,100.80 × 859.17
4. Step 4: Simplify right side
   1,522.29x = 1,804,944.34
5. Step 5: Solve for x
   x = 1,804,944.34/1,522.29
6. Step 6: Final answer
   x = 1,185.68