Finding the Fourth Proportional to 1,551.69, 2,141.37 and 1,080.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.69 : 2,141.37 = 1,080.27 : x
2. Step 2: Convert to fraction form
   1,551.69/2,141.37 = 1,080.27/x
3. Step 3: Cross multiply
   1,551.69x = 2,141.37 × 1,080.27
4. Step 4: Simplify right side
   1,551.69x = 2,313,257.77
5. Step 5: Solve for x
   x = 2,313,257.77/1,551.69
6. Step 6: Final answer
   x = 1,490.80