Finding the Fourth Proportional to 1,525.58, 2,105.29 and 862.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.58 : 2,105.29 = 862.46 : x
2. Step 2: Convert to fraction form
   1,525.58/2,105.29 = 862.46/x
3. Step 3: Cross multiply
   1,525.58x = 2,105.29 × 862.46
4. Step 4: Simplify right side
   1,525.58x = 1,815,728.41
5. Step 5: Solve for x
   x = 1,815,728.41/1,525.58
6. Step 6: Final answer
   x = 1,190.19