Finding the Fourth Proportional to 1,521.29, 2,099.37 and 858.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.29 : 2,099.37 = 858.14 : x
2. Step 2: Convert to fraction form
   1,521.29/2,099.37 = 858.14/x
3. Step 3: Cross multiply
   1,521.29x = 2,099.37 × 858.14
4. Step 4: Simplify right side
   1,521.29x = 1,801,553.37
5. Step 5: Solve for x
   x = 1,801,553.37/1,521.29
6. Step 6: Final answer
   x = 1,184.23