Finding the Fourth Proportional to 1,525.13, 2,104.73 and 862.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.13 : 2,104.73 = 862.09 : x
2. Step 2: Convert to fraction form
   1,525.13/2,104.73 = 862.09/x
3. Step 3: Cross multiply
   1,525.13x = 2,104.73 × 862.09
4. Step 4: Simplify right side
   1,525.13x = 1,814,477.03
5. Step 5: Solve for x
   x = 1,814,477.03/1,525.13
6. Step 6: Final answer
   x = 1,189.72