Finding the Fourth Proportional to 1,019.39, 1,525.08 and 786.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.39 : 1,525.08 = 786.52 : x
2. Step 2: Convert to fraction form
   1,019.39/1,525.08 = 786.52/x
3. Step 3: Cross multiply
   1,019.39x = 1,525.08 × 786.52
4. Step 4: Simplify right side
   1,019.39x = 1,199,505.92
5. Step 5: Solve for x
   x = 1,199,505.92/1,019.39
6. Step 6: Final answer
   x = 1,176.69