Finding the Fourth Proportional to 1,522.06, 2,100.46 and 858.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.06 : 2,100.46 = 858.92 : x
2. Step 2: Convert to fraction form
   1,522.06/2,100.46 = 858.92/x
3. Step 3: Cross multiply
   1,522.06x = 2,100.46 × 858.92
4. Step 4: Simplify right side
   1,522.06x = 1,804,127.10
5. Step 5: Solve for x
   x = 1,804,127.10/1,522.06
6. Step 6: Final answer
   x = 1,185.32