Finding the Fourth Proportional to 1,525.42, 2,106.17 and 936.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.42 : 2,106.17 = 936.15 : x
2. Step 2: Convert to fraction form
   1,525.42/2,106.17 = 936.15/x
3. Step 3: Cross multiply
   1,525.42x = 2,106.17 × 936.15
4. Step 4: Simplify right side
   1,525.42x = 1,971,691.05
5. Step 5: Solve for x
   x = 1,971,691.05/1,525.42
6. Step 6: Final answer
   x = 1,292.56