Finding the Fourth Proportional to 1,525.07, 2,104.58 and 862.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.07 : 2,104.58 = 862.05 : x
2. Step 2: Convert to fraction form
   1,525.07/2,104.58 = 862.05/x
3. Step 3: Cross multiply
   1,525.07x = 2,104.58 × 862.05
4. Step 4: Simplify right side
   1,525.07x = 1,814,253.19
5. Step 5: Solve for x
   x = 1,814,253.19/1,525.07
6. Step 6: Final answer
   x = 1,189.62