Finding the Fourth Proportional to 1,162.71, 1,747.35 and 877.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.71 : 1,747.35 = 877.59 : x
2. Step 2: Convert to fraction form
   1,162.71/1,747.35 = 877.59/x
3. Step 3: Cross multiply
   1,162.71x = 1,747.35 × 877.59
4. Step 4: Simplify right side
   1,162.71x = 1,533,456.89
5. Step 5: Solve for x
   x = 1,533,456.89/1,162.71
6. Step 6: Final answer
   x = 1,318.86