Finding the Fourth Proportional to 1,155.33, 1,731.71 and 880.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.33 : 1,731.71 = 880.52 : x
2. Step 2: Convert to fraction form
   1,155.33/1,731.71 = 880.52/x
3. Step 3: Cross multiply
   1,155.33x = 1,731.71 × 880.52
4. Step 4: Simplify right side
   1,155.33x = 1,524,798.83
5. Step 5: Solve for x
   x = 1,524,798.83/1,155.33
6. Step 6: Final answer
   x = 1,319.80