Finding the Fourth Proportional to 1,155.92, 1,595.83 and 764.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.92 : 1,595.83 = 764.08 : x
2. Step 2: Convert to fraction form
   1,155.92/1,595.83 = 764.08/x
3. Step 3: Cross multiply
   1,155.92x = 1,595.83 × 764.08
4. Step 4: Simplify right side
   1,155.92x = 1,219,344.15
5. Step 5: Solve for x
   x = 1,219,344.15/1,155.92
6. Step 6: Final answer
   x = 1,054.87