Finding the Fourth Proportional to 1,510.50, 2,084.31 and 881.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.50 : 2,084.31 = 881.16 : x
2. Step 2: Convert to fraction form
   1,510.50/2,084.31 = 881.16/x
3. Step 3: Cross multiply
   1,510.50x = 2,084.31 × 881.16
4. Step 4: Simplify right side
   1,510.50x = 1,836,610.60
5. Step 5: Solve for x
   x = 1,836,610.60/1,510.50
6. Step 6: Final answer
   x = 1,215.90