Finding the Fourth Proportional to 1,158.48, 1,732.86 and 881.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.48 : 1,732.86 = 881.46 : x
2. Step 2: Convert to fraction form
   1,158.48/1,732.86 = 881.46/x
3. Step 3: Cross multiply
   1,158.48x = 1,732.86 × 881.46
4. Step 4: Simplify right side
   1,158.48x = 1,527,446.78
5. Step 5: Solve for x
   x = 1,527,446.78/1,158.48
6. Step 6: Final answer
   x = 1,318.49