Finding the Fourth Proportional to 1,155.58, 1,595.52 and 763.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.58 : 1,595.52 = 763.42 : x
2. Step 2: Convert to fraction form
   1,155.58/1,595.52 = 763.42/x
3. Step 3: Cross multiply
   1,155.58x = 1,595.52 × 763.42
4. Step 4: Simplify right side
   1,155.58x = 1,218,051.88
5. Step 5: Solve for x
   x = 1,218,051.88/1,155.58
6. Step 6: Final answer
   x = 1,054.06