Finding the Fourth Proportional to 1,510.77, 2,084.22 and 881.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.77 : 2,084.22 = 881.13 : x
2. Step 2: Convert to fraction form
   1,510.77/2,084.22 = 881.13/x
3. Step 3: Cross multiply
   1,510.77x = 2,084.22 × 881.13
4. Step 4: Simplify right side
   1,510.77x = 1,836,468.77
5. Step 5: Solve for x
   x = 1,836,468.77/1,510.77
6. Step 6: Final answer
   x = 1,215.58