Finding the Fourth Proportional to 1,303.32, 1,796.94 and 855.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.32 : 1,796.94 = 855.12 : x
2. Step 2: Convert to fraction form
   1,303.32/1,796.94 = 855.12/x
3. Step 3: Cross multiply
   1,303.32x = 1,796.94 × 855.12
4. Step 4: Simplify right side
   1,303.32x = 1,536,599.33
5. Step 5: Solve for x
   x = 1,536,599.33/1,303.32
6. Step 6: Final answer
   x = 1,178.99